Ries, A. (1999). The 22 immutable laws of branding. Harper Collins.
Cita Chicago Style (17a ed.)Ries, Al. The 22 Immutable Laws of Branding. London: Harper Collins, 1999.
Cita MLA (9a ed.)Ries, Al. The 22 Immutable Laws of Branding. Harper Collins, 1999.
Precaución: Estas citas no son 100% exactas.