Smykay, Edward W. Introductory marketing : a programmed approach / [by] Edward W . Smykay [and] Joan Breibart. - New York : Macmillan, [1971]. - xiii, 298 p. : ill. ; 26 cm. LCCN: 70-142344 Subjects--Topical Terms: Marketing--Study and teaching. Dewey Class. No.: 658.807 SMY