Kotler.Philip Principles of marketing(14th ed) / Philip Kotler, Gary Armstrong. - 14th ed. - Boston . : Pearson Prentice Hall, c2012 - xxiv, 613, [97] p. : col. ill. ; 29 cm. Includes bibliographical references and index. ISBN: 9780273752431 LC Class. No.: HF 5415 / .K636 2012