APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

Sperry, Armstrong. Call It Courage. New York: The Macmillan company, 1940.

MLA (8th ed.) Citation

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

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