The Audio-visual equipment directory. 

 - Fairfax, Va. :    National Audio-Visual Association,    1974 
 - v. :    ill. ;    25-28 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Audio-visual equipment -- Catalogs.<br/> Audio-Visual Aids -- catalogs.
<br/><br/><label>Dewey Class. No.: </label>025