Cable, Ralph <br/><br/>
Audio-visual handbook / 
Ralph Cable. 
 - London:   University of London Press,   1970.  
 - 118 p. :  ill. ;  22 cm. 
<br/><br/><label>ISBN: </label>0340085428 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Audio-visual education
<br/><br/><label>Dewey Class. No.: </label>371.335