APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (8th ed.) Citation

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