Cita APA (7a ed.)

Wolfe, B. D. (1937). Civil war in Spain. Workers Age Publishers.

Cita Chicago Style (17a ed.)

Wolfe, Bertram David. Civil War in Spain. New York: Workers Age Publishers, 1937.

Cita MLA (9a ed.)

Wolfe, Bertram David. Civil War in Spain. Workers Age Publishers, 1937.