Greenberg, Eric, 1968- Strategic digital marketing : top digital experts share the formula for tangible returns on your marketing investment / Eric Greenberg and Alexander Kates. - New York : McGraw-Hill, [2014] - xii, 352 pages : illustrations ; 24 cm Includes bibliographical references and index. ISBN: 9780071819503 (hbk.) LCCN: 2013022659 Subjects--Topical Terms: Internet marketing.Marketing--Management. LC Class. No.: HF5415.1265 / .G7397 2014 Dewey Class. No.: 658.872 / GRE