TY - BOOK AU - Biagi,Shirley TI - Media/impact : : an introduction to mass media / Reasearch / 302.23 SN - 978-1305580985 U1 - 302.23 21 PY - 1996/// CY - Belmont, Calif. ; , London PB - Wadsworth Pub. Co, KW - Mass media N1 - Includes bibliographical references (p. 390-400) and index ER -