The planning and management of audio-visual media in distance learni ng institutions :   final report of an IIEP workshop, Paris, 30 Septem ber -3 October 1980 /  
by A. W. Bates. 
 - Paris :   UNESCO ,   1981. 
 - 94 p. ;    30 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Distance  education --Audio-visual aids.------