UNESCO <br/><br/>
The economics of new educational media / 
[by] United Nations Educational Scientific and Cultural Orga 
 - Paris  UNESCO press  1982 
 - 147 p. 
<br/><br/><label>ISBN: </label>69389 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Classroom techniques
<br/><br/><label>Dewey Class. No.: </label>371.3  / UNI