APA (7th ed.) Citation

(1935). Classification. Class P, PJ-PM: Language and literature of Asia, Africa, Oceania, America, mixed languages, artificial languages. U.S. Govt. print. off.

Chicago Style (17th ed.) Citation

Classification. Class P, PJ-PM: Language and Literature of Asia, Africa, Oceania, America, Mixed Languages, Artificial Languages. Washington: U.S. Govt. print. off, 1935.

MLA (9th ed.) Citation

Classification. Class P, PJ-PM: Language and Literature of Asia, Africa, Oceania, America, Mixed Languages, Artificial Languages. U.S. Govt. print. off, 1935.