Campbell, F.E. And Others <br/><br/>
Sound-film Projection : Dealing With Installition, Operation & Maintenansce Of Leading Types Of Sound - Projection Equipment And Public Adreaa Systems By. E. Molloy 

 - 2 
 - London  George Newries Ltd.  1946 
 - viii,232p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>C30N915
<br/><br/><label>Dewey Class. No.: </label>C30N915  / H6