APA (7th ed.) Citation

United States. Library of Congress, Savage, H., Droste, K. D., & Runshock, R. (1987). Library of Congress classification schedules combined with additions and changes through 1986 Class P : Language and literature: Subclasses P-PM supplement index to language and dialects. Gale Research Inc.

Chicago Style (17th ed.) Citation

United States. Library of Congress, Helen Savage, Kathleen D. Droste, and Rita Runshock. Library of Congress Classification Schedules Combined with Additions and Changes Through 1986 Class P : Language and Literature: Subclasses P-PM Supplement Index to Language and Dialects. Detroit: Gale Research Inc, 1987.

MLA (9th ed.) Citation

United States. Library of Congress, et al. Library of Congress Classification Schedules Combined with Additions and Changes Through 1986 Class P : Language and Literature: Subclasses P-PM Supplement Index to Language and Dialects. Gale Research Inc, 1987.