Walker, John R. <br/><br/>
Exploring drafting :  basic fundamentals / 
by John R. Walker. 
 - South Holland, Ill. :  Goodheart-Willcox Co.,  c1978. 
 - 320 p. :  ill. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>087006262X 
<br/><br/><label>LCCN: </label>78015883  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mechanical drawing.