APA (7th ed.) Citation

Kahn, S. (1941). Army mental questions. [publisher not identified].

Chicago Style (17th ed.) Citation

Kahn, Samuel. Army Mental Questions. [Atlanta?]: [publisher not identified], 1941.

MLA (9th ed.) Citation

Kahn, Samuel. Army Mental Questions. [publisher not identified], 1941.

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