Cable, Ralph. <br/><br/>
Audio-visual handbook. 

 - 2nd ed. 
 - London,  University of London P.,  1968. 
 - 118 p.  illus.  22 cm. 
<br/><br/><label>ISBN: </label>0340085428 
<br/><br/><label>Source: </label>R 
<br/><br/><label>LCCN: </label>70520764  
<br/><br/><label>Nat. Bib. No.: </label>B69-06123 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Audio-visual education--Handbooks, manuals, etc.
<br/><br/><label>LC Class. No.: </label>LB1043  / .C25 1968 
<br/><br/><label>Dewey Class. No.: </label>371.33/02/02