Blank, Steven G., The four steps to the epiphany : successful strategies for products that win / 4 steps to the epiphany Successful strategies for products that win Steven Blank - Fifth edition - x, 370 páginas : ilustraciones ISBN: 0989200507 9780989200509 Subjects--Topical Terms: Capacidad empresarialProductos nuevosMarketing relacionalPlanificación empresarial LC Class. No.: HB615 / B53 2013 Dewey Class. No.: 658.4/012