Thomal,Robert M <br/><br/>
Encyclopedia of autocad II 

 - 2nd Ed. 
 - New Delhi  BPB Publications  1992 
 - 1221 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mechanical Engineering
<br/><br/><label>Dewey Class. No.: </label>4  / TH-E