APA (7th ed.) Citation

United States. War Department. (1921). Designations of specialists. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. War Department. Designations of Specialists. Washington: [publisher not identified], 1921.

MLA (9th ed.) Citation

United States. War Department. Designations of Specialists. [publisher not identified], 1921.

Warning: These citations may not always be 100% accurate.