Thornhill, Robert Blair <br/><br/>
Engineering graphics and numerical control 

 - New York  ; Mcgraw-Hill Book  , 1967 
 - xvii,343p. 
<br/><br/><label>ISBN: </label>  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engineering Graphics
<br/><br/><label>Dewey Class. No.: </label>604.2  / THO