APA (7th ed.) Citation

United States Library of Congress. Classification Division. (1956). Classification. Class P, subclass PJ-PM: Languages and literatures of Asia, Africa, Oceania, America, mixed languages, artificial languages, with supplementary pages. U. S. Government Printing Office.

Chicago Style (17th ed.) Citation

United States Library of Congress. Classification Division. Classification. Class P, Subclass PJ-PM: Languages and Literatures of Asia, Africa, Oceania, America, Mixed Languages, Artificial Languages, with Supplementary Pages. Washington: U. S. Government Printing Office, 1956.

MLA (9th ed.) Citation

United States Library of Congress. Classification Division. Classification. Class P, Subclass PJ-PM: Languages and Literatures of Asia, Africa, Oceania, America, Mixed Languages, Artificial Languages, with Supplementary Pages. U. S. Government Printing Office, 1956.