Cable, Ralph <br/><br/>
Audio-visual handbook 
<label>/ by </label> Cable, Ralph 
 - 3rd ed. 
 - London  University of London Press  1970 
 - 118p.  ill.  22 cm. 
<br/><br/><label>ISBN: </label>0340085428 
<br/><br/><label>Dewey Class. No.: </label>371.33  / CAB