Cataloghi Biblioteche specializzate
- Biblioteca Conjunta (Corte Interamericana de Derechos Humanos)
- Biblioteca del MERCOSUR
- Bibliothèque Cujas
- Bodleian Law Library (University of Oxford)
- Brazilian National Library
- ECLAS - European Commission Libraries Catalogue
- Library of Congress
- Library of the Court of Justice of the European Union
- Library of the European Court of Human Rights
- Library of the UN Office at Geneva
- Library - Max Planck Institute for Comparative Public Law and International Law
- National Library of China
- Peace Palace Library
- Polo Bibliotecario Parlamentare
- UN Dag Hammarskjöld Library