Valerien, Jacques <br/><br/>
The educational administrator and instructional materials / 
[by Jacques Valerien] 
 - Paris :  Unesco,  1984 
 - 180p. 
<br/><br/> "ICEM and Unesco requested Jean Valerien ... to draw up this study" 
<br/><br/><label>ISBN: </label>9231022024 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Comparative education<br/>Instructional materials centers<br/>Audio-visual materials