APA (7e ed.) Bronvermelding

Ries, A., & Trout, J. (2006). Marketing warfare (20th anniversary ed.). McGraw-Hill.

Chicago (17e ed.) Bronvermelding

Ries, Al, en Jack Trout. Marketing Warfare. 20th anniversary ed. New York: McGraw-Hill, 2006.

MLA (9e ed.) Bronvermelding

Ries, Al, en Jack Trout. Marketing Warfare. 20th anniversary ed. McGraw-Hill, 2006.