CHAFFEY, DAVE EMARKETING EXCELLENCE: PLANNING AND OPTIMIZING YOUR DIGITAL MARKETING - 3RD ED. - OXFORD Reino Unido ELSEVIER 2008 - 508 ISBN: 9780750689458 LCCN: 90329 Subjects--Topical Terms: COMERCIO ELECTRONICONEGOCIOS-INTERNET Dewey Class. No.: 658.872