Tull, Donald S. Marketing research : measurement & method / Donald S. Tull and Del I. Hawkins - 6th ed. - New Delhi : Prentice-Hall of india, c1998. - xviii, 86 p. : ill. ; 24 cm. ISBN: 8120309618 LCCN: Subjects--Topical Terms: Marketing researchMarketing LC Class. No.: HF5415.2 / .M3555 1998 Dewey Class. No.: 658.83 / T918m