Educators guide to free films / 
ed. by John C. Diffor. 
 - 51a ed. 
 - Randolph, Wis. :  EPS,  1991. 
 - 407 p. 
<br/><br/> For use during school year 1991-1992 
<br/><br/><label>Encabezamiento--Tema: </label><br/>EDUCACION ---AUXILIARES AUDIOVISUALES<br/>EDUCACION ---MATERIALES<br/>ENSEÑANZA AUDIOVISUAL ---METODOLOGIA