Tull, Donald S. Marketing research : meaning, measurement, and method : a text with cases / Donald S. Tull, Del I. Hawkins. - New York : Macmillan, c1976. - xv, 736 p. : ill. ; Includes bibliographies and index. ISBN: 0024217409 Subjects--Topical Terms: Marketing research. Dewey Class. No.: 658.835 TUL/M