Enis, Ben M. Marketing principles the management process / Ben M. Enis. - 2d ed. - Calif Goodyear Pub. Co. : Santa Monica 1977. - xxii, 621 p. : ill. ; 25 cm. Includes bibliographies and indexes. ISBN: 0876205678 LCCN: 76-019703 //r84 Subjects--Topical Terms: Marketing--Management