APA (7th ed.) Citation

Ries, A., & Trout, J. (1993). The 22 immutable laws of marketing: Violate them at your own risk. Harper Collins.

Chicago Style (17th ed.) Citation

Ries, Al, and Jack Trout. The 22 Immutable Laws of Marketing: Violate Them at Your Own Risk. New York: Harper Collins, 1993.

MLA (9th ed.) Citation

Ries, Al, and Jack Trout. The 22 Immutable Laws of Marketing: Violate Them at Your Own Risk. Harper Collins, 1993.