Hiebert, Ray Eldon Mass media VI an introduction to modern communication Ray Eldon Hiebert, Donald F. Ungurait, Thomas W. Bohn - New York Longman 1990 - xix, 666 p. : ill. ; 26 cm. p. 641-648 ISBN: 0801304539 LCCN: 90-013463 Subjects--Topical Terms: Mass mediaCommunication