DeFleur, Melvin L. c1923. Understanding mass communication / Melvin L. DeFleur, Everette E. Dennis ; with the assistance of Margaret S. Hanus. - 2nd edition. - Boston : Houghton Mifflin Company, c1985. - xi, 620 pages : illustrations ; 23 cm. Includes bibliographies and index. ISBN: 0395359295 (pbk.) LCCN: 84081983 Subjects--Topical Terms: Mass media--United States. LC Class. No.: P92.U5 / D42 1985 Dewey Class. No.: 001.51/0973