Wimmer, Roger D. Mass media research : an introduction / Roger D. Wimmer, Joseph R. Dominick. - 6th ed. - Belmont, CA : Wadsworth Pub., 2000. - xi, 499 p. : ill. - 302.2/07 . Includes bibliographical references and indexes. ISBN: 0534560075 Subjects--Topical Terms: Mass media--Research. Dewey Class. No.: 302.2/07