Al Ries, Raul ; Trout, Jack The 22 inmutable laws of marketing: Violate them at your own risk - New York : Harper Colilns Books, 1993 - 143 pags; rústica ISBN: 0-88730-666-7 LCCN: 000000274 Subjects--Topical Terms: Estrategia--Marketing. Concepto y fundamentos