Vincent, Alan. <br/><br/>
The overhead projector / 
by Alan Vincent. 
 - Englewood Cliffs, N. J. :  Prentice-Hall,  1965. 
 - 68 p. :  ill. ;  22 cm. 
 - Experimental development unit report ;  8 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Overhead projection.