Ries, Al La guerra de la mercadotecnia / Al Ries, Jack Trout - México : McGraw Hill - xii, 213 p. / 21 cm. ISBN: 968-451-998-2 Subjects--Topical Terms: 1.MERCADOTECNIA LC Class. No.: HF5415 R559 Dewey Class. No.: 658.83 R593g