Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.