TY - BOOK TI - International encyclopedia of communications SN - 0195049942 (set : alk. paper) U1 - 001.510321 PY - 1989/// CY - New York PB - Oxford University Press KW - Communication-Encyclopedias.------ N1 - "Published jointly with the Annenburg School of Communications, University of Pennsylvania.--Includes bibliographies and index ER -