Kotler, Philip. Principles of marketing / Philip Kotler, Gary Armstrong. - 11th ed. - Upper Saddle River, N.J. : Pearson Prentice Hall, c2006. - xx, 651, [94] p. : col. ill. ; 29 cm. All. ISBN: 0131469185 LCCN: 2004029593 Subjects--Topical Terms: Marketing. Dewey Class. No.: 658.8