Cita APA (7a ed.)

Crothers, G. D. (1964). American History. Holt,Rinehart and Winston.

Cita Chicago Style (17a ed.)

Crothers, George D. American History. Nueva York: Holt,Rinehart and Winston, 1964.

Cita MLA (9a ed.)

Crothers, George D. American History. Holt,Rinehart and Winston, 1964.