Cita APA (7a ed.)

Hoover, H. (1942). America's first crusade. C. Scribner's Sons.

Cita Chicago Style (17a ed.)

Hoover, Herbert. America's First Crusade. New York: C. Scribner's Sons, 1942.

Cita MLA (8a ed.)

Hoover, Herbert. America's First Crusade. C. Scribner's Sons, 1942.