APA (7th ed.) Citation

Day, C. (1925). History of commerce of the United States. Longmans.

Chicago Style (17th ed.) Citation

Day, Clive. History of Commerce of the United States. New York: Longmans, 1925.

MLA (9th ed.) Citation

Day, Clive. History of Commerce of the United States. Longmans, 1925.