Nelson, John A.,  1935- <br/><br/>
Drafting for trades & industry /  basic skills 
John A. Nelson 
 - Albany, N.Y.  Delmar Publishers  1979 
 - 464p.  ill.  31cm. 
<br/><br/><label>ISBN: </label>0827318413  RM78.05 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mechanical drawing