National communication policy councils : principles and experiences / Marco Antonio Rodrigues Dias ...[et. al]. - Paris : UNESCO, 1979. - 44 p. : ills. ; 30 cm . - no. 83. . Bibliography : P. 40-42 346 346 ISBN: 92-3-101661-X Subjects--Topical Terms: Communications . Dewey Class. No.: 384 / U3n