Distance learning and evaluation 
edited for the Association for Educational and Training Technology by Fred Percival and Henry Ellington ; general editor, A.J. Trott. 
 - London  New York  Kogan Page  Nichols  1981. 
 - 334 p.  ill.  24 cm. 
 - Aspects of educational technology  v. 15  0141-5956 .
<br/><br/> Proceedings of the Association's fifteenth annual conference, Aberdeen, 31 March to 3 April, 1981. 
<br/><br/>Includes bibliographies and indexes. 
<br/><br/><label>ISBN: </label>0893971162 (Nichols)  £15.50 
<br/><br/><label>LCCN: </label>82115209  
<br/><br/><label>Subjects--Topical Terms: </label><br/>University extension--Congresses.<br/>Educational technology--Congresses.<br/>Television in higher education--Congresses.
<br/><br/><label>LC Class. No.: </label>LB1028.5  / .A73 1981 
<br/><br/><label>Dewey Class. No.: </label>371.3/07/8