APA (7th ed.) Citation

Sperry, A. (1940). Call it courage. Macmillan.

Chicago Style (17th ed.) Citation

Sperry, Armstrong. Call It Courage. [S.l.]: Macmillan, 1940.

MLA (9th ed.) Citation

Sperry, Armstrong. Call It Courage. Macmillan, 1940.

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