Kotler, Philip. Principles of marketing / Philip Kotler, Gary Armstrong. - 13th ed. - Upper Saddle River, N.J. : Prentice Hall, c2010. - xxiii, 637 p. : ill. (chiefly col.) ; 29 cm. Includes bibliographical references (p. R1-R26) and indexes. ISBN: 9780137006694 (alk. paper) 0137006691 Subjects--Topical Terms: Marketing. Dewey Class. No.: 658.8