University of California Library Catalog
The Melvyl catalog contains records for materials (books, journals, movies, maps, music scores and recordings, computer files, dissertations, government documents, etc.) held by the libraries of the ten UC campuses, the California State Library, Hastings College of the Law, the California Academy of Sciences, the California Historical Society, the Center for Research Libraries, the Graduate Theological Union, and the Lawrence Berkeley National Laboratory.
All publication dates are included.
The database contains over 23,000,000 records, and most campuses update their holdings on a weekly basis.