APA (7th ed.) Citation

Robertson, R. M. (1955). History of the American economy. Harcourt, Brace.

Chicago Style (17th ed.) Citation

Robertson, Ross M. History of the American Economy. New York: Harcourt, Brace, 1955.

MLA (9th ed.) Citation

Robertson, Ross M. History of the American Economy. Harcourt, Brace, 1955.