Kotler, Philip. Principles of Marketing / Philip Kotler, Gary Armstrong. - 11th ed. - Upper Saddle River, NJ : Pearson Prentice Hall, 2006. - 671 p. : ill. 28 cm. Includes index. ISBN: 81-7758-107-4 Subjects--Topical Terms: Marketing.Marketing--Management. Dewey Class. No.: 658.8 / K87