Eicher Jean-Claude and others <br/><br/>
Economics of new educational media. V3   Cost and effectiveness overview and synthesis 

 -  1981 
 - 149p.  cm. 
<br/><br/><label>ISBN: </label>923101997x 
<br/><br/><label>Standard No.: </label>23515 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>EDUCATION
<br/><br/><label>Dewey Class. No.: </label>T0aD65,8(B), M2.3