Contributions to an educational technology; 

 - London,  Butterworths,  1972-1978. 
 - 294P  illus., facsims. 
<br/><br/> Vol. 2, ed. by J. Hartley and I. K. Davies, published by Kogan Page, London, and Nichols Pub. Co., New York. 
<br/><br/><label>ISBN: </label>0408701382 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educational technology.
<br/><br/><label>LC Class. No.: </label>MED LB1028.3  / C664