Devereux, Edward James Pryce. <br/><br/>
An introduction to visual aids, 
compiled by E. J. P. Devereux. 
 - London  [Printed and published by Matthews, Drew & Shelbourne for] the Visual Aids Centre  [1962] 
<br/><br/>Bibliography: p. 189-190. 
<br/><br/><label>LCCN: </label>68128057 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Audio-visual equipment.
<br/><br/><label>LC Class. No.: </label>TS2301.A7  / D4