Rosen, Emanuel Marketing de boca en boca / Emanuel Rosen - Espaņa : Vergara - 305 p. / 26 cm. ISBN: 950-15-2202-4 Subjects--Topical Terms: 1.MARKETING \ 2.MERCADEO LC Class. No.: HF5827.95 R6718 2000 Dewey Class. No.: 658.8 R813m