Gilbert G. Weaver <br/><br/>
Visual aids : Their construction and use 

 - Princeton  D. Van Nostrand Co Inc  1963 
 - 388p 
<br/><br/>Gilbert G. Weaver & Elroy  W. Bollinger: Visual aids : Their construction and use.  Princeton.  D. Van Nostrand Co Inc, 1963.--(371.33WEA)   
<br/><br/><br/>ENGLISH 
<br/><br/><label>Dewey Class. No.: </label>371.33  / WEA