====== Insitution and file codes in heading fields ======
The following codes may be used in a subfield $5 of a field 200, 210, 212 or 215 of the CERL Thesaurus. Where possible, codes from the [[http://www.loc.gov/marc/organizations/|Marc Code List for Organisations]] are used.

| aba010        | Provenio (Czech castle libraries)                                                                               |
| AtBPA         | Austrian Academy of Sciences: Bernstein Paper Atlas, Wien (Austria)                                             |
| BNF           | Bibliothèque Nationale de France                                                                                |
| BSB,VD16      | Bibliography of books published in German-speaking countries in 16th century (VD 16), Munich (Germany)          |
| BUW           | Warsaw University Library, Poland                                                                               |
| CANTIC        | Joint project of the Biblioteca de Catalunya and other Catalan libraries                                        |
| CiZaNSK       | National and University Library, Zagreb (Croatia)                                                               |
| DE-7-HANS     | HANS, SUB Göttingen (Germany)                                                                                   |
| EBOB          | Early Book Owners in Britain                                                                                    |
| ErTaRR        | Eesti Rahvusraamatukogu, Tallin (Estonia)                                                                       |
| ES-BaCBU      | Biblioteca de Catalunya, Barcelona                                                                              |
| ES-BaUB       | Barcelona, University Library                                                                                   |
| ES-SlU        | Universidad de Salamanca, Spain                                                                                 |
| ESTC          | British Library: English Short Title Catalogue, London (United Kingdom)                                         |
| ESTC(AACR2)   | British Library: English Short Title Catalogue - AACR2 Heading, London (United Kingdom)                         |
| ESTC(GK)      | British Library: English Short Title Catalogue - GK Heading, London (United Kingdom)                            |
| FrLy          | Bibliothèque municipale, Lyon (France)                                                                          |
| FrPBN         | Bibliothèque nationale de France, Paris                                                                         |
| GBV           | Gemeinsamer Bibliotheksverbund (Germany)                                                                        |
| GScrO         | Germania Sacra Online                                                                                           |
| GYBL          | Staatsbibliothek zu Berlin, Stiftung Preußischer Kulturbesitz, Berlin (Germany)                                 |
| GYHF          | Franckesche Stiftungen zu Halle, Bibliothek, Halle/S. (Germany)                                                 |
| GYHN          | Gottfried Wilhelm Leibniz Bibliothek, Hannover (Germany)                                                        |
| GYMG          | Bavarian State Library, Munich (Germany)                                                                        |
| GYRU          | Universitätsbibliothek Rostock, Germany                                                                         |
| GYWH          | Herzogin Anna Amalia Bibliothek, Weimar (Germany)                                                               |
| GyFmDB        | Personal Names Authority File (PND), Germany                                                                    |
| GyGoGBV       | Common Library Network (GBV), Göttingen (Germany)                                                               |
| GyGoN         | Staats- und Universitätsbibliothek Göttingen                                                                    |
| GyHaS         | Staats- und Universitätsbibliothek Hamburg, Germany                                                             |
| GyWbHAB (L)   | Herzog August Bibliothek: Katalog der Wolfenbütteler Lutherdrucke, Wolfenbüttel (Germany)                       |
| GyWbHAB       | Herzog August Bibliothek, Wolfenbüttel (Germany)                                                                |
| HUBpOSK       | National Széchényi Library, Budapest                                                                            |
| ICCU          | Central Institute for the Union Catalogue of Italian Libraries and for Bibliographic Information, Rome (Italy)  |
| IT-NA0079     | Biblioteca Nazionale di Napoli                                                                                  |
| IT-RM0313     | Biblioteca Casanatense, Rome                                                                                    |
| IT-RM0267     | Biblioteca nazionale centrale Vittorio Emanuele II Roma                                                         |
| IT-VE0049     | Biblioteca Nazionale Marciana Venezia                                                                           |
| NL-HaKB       | Koninklijke Bibliotheek - National Library of the Netherlands, Den Haag (Netherlands)                           |
| NeHKB         | Koninklijke Bibliotheek - National Library of the Netherlands, Den Haag (Netherlands)                           |
| NeHKB (WILC)  | Watermarks in the Low Countries                                                                                 |
| NeNKHB        | Koninklijke Bibliotheek - National Library of the Netherlands, Den Haag (Netherlands)                           |
| NL-UtRU       | Universiteit Utrecht                                                                                            |
| NLS-SBTI      | National Library of Scotland                                                                                    |
| NLS-SSP       | National Library of Scotland                                                                                    |
| nukat         | NUKAT union catalogue of Polish academic and research libraries                                                 |
| PlWaBN        | Biblioteka Narodowa, Warszawa                                                                                   |
| plwro         | Wroclaw University Library (Poland)                                                                             |
| RuNLR         | National Library of Russia, St. Petersburg                                                                      |
| SBB-TW        | Typenrepertorium der Wiegendrucke, SBB Berlin                                                                   |
| SpMaUC        | Universidad Complutense, Madrid (Spain)                                                                         |
| StAbUL        | University of Aberdeen Library, (United Kingdom)                                                                |
| STCV          | Short Title Catalogus Vlaanderen, Belgium                                                                       |
| StGlU-inc     | University of Glasgow Library                                                                                   |
| SwSKB         | National Library of Sweden                                                                                      |
| SzBaU         | Universitätsbibliothek Basel, Switzerland                                                                       |
| UBrm          | Universität Bremen                                                                                              |
| Uk            | British Library, Database of bookbindings                                                                       |
| UkCyCl        | Canterbury Cathedral Library, (United Kingdom)                                                                  |
| UkMiTe        | Middle Temple Library, London (United Kingdom)                                                                  |