Biagi, Shirley Media impact : an introduction to mass media / Shirley Biagi. - 6th ed. - Australia: Wadsworth/Thomson Learning, c2003. - xxv, 388p. : col. ill. ; 26 cm. Glossary : p. G347 - G349. References : p. 359 - 370. Includes CD-ROM. ISBN: 0534597068 Subjects--Topical Terms: Mass media LC Class. No.: P90 / B47 2003