Regional catalogs:
-
Columbia University (CLIO)
- Rutgers University (IRIS)
- Newark Public Library (Clavis)
- New York Public Research Libraries (CATNYP)
- New Jersey Libraries
- New Jersey Historical Society
- Library of Congress
- University of Pennsylvania
- Yale University (ORBIS)
- Harvard University (HOLLIS)
- Museum of Modern Art (DADABASE)
Global catalogs
