APA (7e ed.) Bronvermelding

Gardner, F. V. (1955). Profit management and control. McGraw-Hill.

Chicago (17e ed.) Bronvermelding

Gardner, Fred V. Profit Management and Control. New York: McGraw-Hill, 1955.

MLA (9e ed.) Bronvermelding

Gardner, Fred V. Profit Management and Control. McGraw-Hill, 1955.