Ries, A., & Trout, J. (2007). The 22 Immutable Laws of Marketing. Profile Books Ltd.
Cita Chicago Style (17a ed.)Ries, Al, y Jack Trout. The 22 Immutable Laws of Marketing. London: Profile Books Ltd, 2007.
Cita MLA (9a ed.)Ries, Al, y Jack Trout. The 22 Immutable Laws of Marketing. Profile Books Ltd, 2007.
Precaución: Estas citas no son 100% exactas.