APA (7th ed.) Citation

Day, C. (1934). A history of commerce. Longmans, Green and Co.

Chicago Style (17th ed.) Citation

Day, Clive. A History of Commerce. New York [u.a.]: Longmans, Green and Co, 1934.

MLA (9th ed.) Citation

Day, Clive. A History of Commerce. Longmans, Green and Co, 1934.