APA (7th ed.) Citation

(1928). Classification: Class U: Military science (2d ed.). U.S. Govt. print. off.

Chicago Style (17th ed.) Citation

Classification: Class U: Military Science. 2d ed. Washington: U.S. Govt. print. off, 1928.

MLA (9th ed.) Citation

Classification: Class U: Military Science. 2d ed. U.S. Govt. print. off, 1928.