Cita APA (7th ed.)

Ries, A. (1996). The 22 Immutable laws of marketing. Harper Collins Publications.

Cita Chicago (17th ed.)

Ries, AI. The 22 Immutable Laws of Marketing. New delhi: Harper Collins Publications, 1996.

Cita MLA (9th ed.)

Ries, AI. The 22 Immutable Laws of Marketing. Harper Collins Publications, 1996.