APA (7th ed.) Citation

U.S. Library of Congress. Subject Cataloging Division, Gale Research Inc, Runchock, R., & Droste, K. (1989). Class P, subclasses PB-PH. Modern European languages: Library of Congress classification schedules combined with additions and changes through 1988. Gale Research Inc.

Chicago Style (17th ed.) Citation

U.S. Library of Congress. Subject Cataloging Division, Gale Research Inc, Rita Runchock, and Kathleen Droste. Class P, Subclasses PB-PH. Modern European Languages: Library of Congress Classification Schedules Combined with Additions and Changes Through 1988. Detroit, Michigan: Gale Research Inc, 1989.

MLA (9th ed.) Citation

U.S. Library of Congress. Subject Cataloging Division, et al. Class P, Subclasses PB-PH. Modern European Languages: Library of Congress Classification Schedules Combined with Additions and Changes Through 1988. Gale Research Inc, 1989.