Mckown, Harry C. <br/><br/>
Educación audiovisual / Harry C. Mckown, Alvin B. Roerts 

 - México : UTEHA, 1961 
 - 581 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Materiales audiovisuales
<br/><br/><label>Dewey Class. No.: </label>371.333 M113e 1961