Bullard, John R. <br/><br/>
Audiovisual fundamental :  basic equipment operastion, simple materials production / 
John R. Bullard [and] Calvin E. Mether 
 - 3rd ed. 
 - Dubuque, Iowa :  Wm. C. Brown,  1984 
 - 189 p. :  ill. ;  18 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Audio-visual equipment