Kotler, Philip. Principles of marketing / Philip Kotler and Gary Armstrong. - 7th ed. - New Delhi : Prentice-Hall of India, 1996. - xvii, 834p. : ill. ; 29cm. Includes indexes. ISBN: 8120310772 9788120310773 Subjects--Topical Terms: Marketing. Dewey Class. No.: 658.8 / KOP 1996