APA (7. basım) Alıntı

U. S. Library of Congress. Subject Cataloging Division, Gale Research Company, Library of Congress. Subject Cataloging Division, & Savage, H. (1973). Library of Congress Classification schedules, a cumulation of additions and changes, 1971-1972. Class Z: Bibliography and library science. Gale Research Company.

Chicago Style (17. basım) Atıf

U. S. Library of Congress. Subject Cataloging Division, Gale Research Company, Library of Congress. Subject Cataloging Division, ve Helen Savage. Library of Congress Classification Schedules, a Cumulation of Additions and Changes, 1971-1972. Class Z: Bibliography and Library Science. Detroit, Michigan: Gale Research Company, 1973.

MLA (9th ed.) Atıf

U. S. Library of Congress. Subject Cataloging Division, et al. Library of Congress Classification Schedules, a Cumulation of Additions and Changes, 1971-1972. Class Z: Bibliography and Library Science. Gale Research Company, 1973.