The National union catalog;
a cumulative author list representing Library of Congress printed cards and titles reported by other American libraries.
Register of additional locations.
APA Citation
Library of Congress. The National union catalog: a cumulative author list representing Library of Congress printed cards and titles reported by other American libraries. Washington: Library of Congress.
MLA Citation
Library of Congress. The National Union Catalog: a Cumulative Author List Representing Library of Congress Printed Cards And Titles Reported by Other American Libraries. Washington: Library of Congress,
Warning: These citations may not always be complete (especially for serials).