Biagi, Shirley. Media/impact : an introduction to mass media / Shirley Biagi. - 6th ed. - Australia ; Belmont, CA : Wadsworth/Thomson, c2003. - xxv, 388 p. : col. ill. ; 28 cm.+ 1 CD-ROM (4 3/4 in.) Includes bibliographical references (p. 359-370) and index. ISBN: 0534597068 (pbk.) LCCN: 2002019812 Subjects--Topical Terms: Mass media. LC Class. No.: P90 / .B489 2002 Dewey Class. No.: 302.23