Tull, Donald S . Research for marketing decisions / by Paul E. Green and Donald S. Tull. - New Delhi : Prentice Hall of India , 1978. - 669p. : figures ; 23cm 1 CD . Includes index ISBN: 0876924291 Rs. 59.00 Subjects--Index Terms: MARKETING DECISIONS Dewey Class. No.: 658.15072 / GRE/R