Walker, John R.,  1924- <br/><br/>
Exploring metric drafting :  basic fundamentals / 
by John R. Walker. 
 - South Holland, Ill. :  Goodheart-Willcox Co.,  c1980. 
 - 320 p. :  ill. ;  29 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0870062891 
<br/><br/><label>Source: </label>B-18846 
<br/><br/><label>LCCN: </label>79024019  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mechanical drawing.<br/>Metric system.
<br/><br/><label>LC Class. No.: </label>T353.  / .W23  1980 
<br/><br/><label>Dewey Class. No.: </label>604/.2