Style de citation APA (7e éd.)

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

Style de citation Chicago (17e éd.)

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

Style de citation MLA (8e éd.)

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