Bullard, John R. <br/><br/>
Audiovisual fundamentals :  basic equipment operation and simple materials production / 
John R. Bullard, Calvin E. Mether 
 - Dubuque, Iowa :  Wm. C. Brown Publishers,  1974 
 - ix, 150 p. :  ill. ;  22 cm. 
<br/><br/><label>ISBN: </label>0697060438 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Audio-visual equipment