Biagi, Shirley. Media/impact : an introduction to mass media / Shirley Biagi - 7th ed. - Australia : Thomson/Wadsworth, c2005 - 408 p. : ill. (some col.) + 1 CD-ROM Includes bibliographical references and index ISBN: 0534630545 Subjects--Topical Terms: MASS MEDIA LC Class. No.: P90 / B523M 2005