Barr Paul C.; Krimper Ronald L.; Lazear Micheal R. & Stammen Christopher <br/><br/>
CAD: Principles and applications 

 - Prentice - Hall, Inc., NJ  c1985 
<br/><br/><label>ISBN: </label>0 13 110198 6 
<br/><br/><label>Dewey Class. No.: </label>620.0042502854 Bar