Gabriel
Gateway to Europe's National Libraries

BN-OPALE PLUS
Main catalog of the Bibliothèque Nationale de France

Gallica
Digital library of the Bibliothèque Nationale de France

CCFR
Catalogue Collectif de France, including the Répertoire des Bibliothèques and the Localisation de Documents

L'Oriente-Express
Directory of Parisian libraries held by the BPI (Bibliothèque Publique d'Information, Centre Georges Pompidou)

Library of Congress
On-line Catalogs

British Library
On-line Catalog