Hack, John <br/><br/>
How to make audiovisuals / 
John Hack 
 - Nashville, Tenn. :Broadman P.,  1979 
 - 160p. :  ill. 
<br/><br/><label>ISBN: </label>0805434275 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Audio-visual education<br/>Audio-visual materials