Wimmer, Roger D. Mass media research : an introduction / Roger D. Wimmer, Joseph R. Dominick. - 7th ed. - Australia : Wadsworth / Thomson, c2003. - xii, 478p. : ill. 23 cm. Glossary : p. 459-468. Includes bibliographical references and index. ISBN: 0534562744 Subjects--Topical Terms: Mass media--Research LC Class. No.: P91.3 / W71 2003