Cita APA

Holbrook, S. H. (1942). None more courageous: American heroes of today. Macmillan.

Citación estilo Chicago

Holbrook, Stewart Hall. None More Courageous: American Heroes of Today. New York: Macmillan, 1942.

Cita MLA

Holbrook, Stewart Hall. None More Courageous: American Heroes of Today. Macmillan, 1942.