Cohen, William A. Direct response marketing an entrepreneurial approach William A. Cohen. - New York Wiley c1984. - xiv, 496 p. ill. Includes indexes. ISBN: 047188684X LCCN: 83019825 Subjects--Topical Terms: Direct marketing LC Class. No.: HF5415.122 / .C63 1984 Dewey Class. No.: 658.8/4