APA (7th ed.) Citation

Nichols, J. P., & Nichols, R. F. (1942). The republic of the United States: A history. D. Appleton-Century Company, Incorporated.

Chicago Style (17th ed.) Citation

Nichols, Jeannette Paddock, and Roy F. Nichols. The Republic of the United States: A History. New York, London: D. Appleton-Century Company, Incorporated, 1942.

MLA (9th ed.) Citation

Nichols, Jeannette Paddock, and Roy F. Nichols. The Republic of the United States: A History. D. Appleton-Century Company, Incorporated, 1942.