TY - BOOK AU - Wimmer, Roger D. AU - Dominick, Joseph R. ED - ED - ED - ED - TI - : an introduction SN - 0534562744 (hardback) SN - 2 PY - 2003///;copyright 2003.46 CY - Belmont, CA PB - Thomson/Wadsworth KW - KW - 2 KW - 0 KW - 6 KW - 20 KW - Research KW - Mass media N1 - Includes bibliographical references and indexes; 5 ER -