Cita APA (7a ed.)

Nichols, R. F., & Nichols, J. P. (1943). A short history of American democracy. D. Appleton-Century Co.

Cita Chicago Style (17a ed.)

Nichols, Roy F., y Jeannette Paddock Nichols. A Short History of American Democracy. New York, London: D. Appleton-Century Co, 1943.

Cita MLA (8a ed.)

Nichols, Roy F., y Jeannette Paddock Nichols. A Short History of American Democracy. D. Appleton-Century Co, 1943.