DeFleur, Melvin L. 1923- Understanding mass communication / Melvin L. DeFleur, Everette E. Dennis ; with the assistance of Margaret S. Hanus. - 2nd ed. - Boston : Houghton Mifflin Co., c1985. - xi, 620 p. : ill. ; 24 cm. Includes bibliographies and index. ISBN: 0395359295 (pbk.) Subjects--Topical Terms: Mass media--United States. Dewey Class. No.: 001.510973 / DEU 1985