Kotlar, Philip. Principles of marketing / by Philip Kotlar and Gary Armstrong. - 12th ed / . - New Delhi : Prentice Hall of India , 2008. - I-20p. : figures ; 27cm . Includes index ISBN: 9788120332928 RS525.00 Subjects--Index Terms: MARKETING Dewey Class. No.: 658.8 / KOT/P