APA引文

Ries A I & Trout, J. (1993). Twenty two immutable laws of marketing.

Chicago Edition Citation

Ries A I and Jack Trout. Twenty Two Immutable Laws of Marketing. :, 1993.

MLA引文

Ries A I and Jack Trout. Twenty Two Immutable Laws of Marketing. 1993.

警告：這些引文格式不一定是100％准確.