Aspects of educational technology 
Edited by Jon Baggaley 
 - London   Pitman publishing   1975 
 - 371p. 
<br/><br/> HB 
<br/><br/><br/>Eng 
<br/><br/><label>ISBN: </label>0273004220 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educational technology-Congress<br/>Communication-Congress
<br/><br/><label>Dewey Class. No.: </label>371.3078  / ASP