Resources outside of Harvard
WorldCat
Catalog of records for materials (books, periodicals, scores, films,
recordings, etc.) cataloged by over 41,000 OCLC (Online Computer Library
Center) member libraries in the United States and 82 other nations.
Ulrich's
International Periodicals Directory
Information on more than a quarter of a million periodicals and serials
published in the United States and throughout the world.