Ries, A. (2007). The 22 Immutable Laws of Marketing. Quercus Publishing Ltd.
Citación estilo ChicagoRies, Al. The 22 Immutable Laws of Marketing. London: Quercus Publishing Ltd, 2007.
Cita MLARies, Al. The 22 Immutable Laws of Marketing. Quercus Publishing Ltd, 2007.
Warning: These citations may not always be 100% accurate.