Wirshing, Roy H. <br/><br/>
Civil engineering drafting / 
Roy H. Wirshing, James R. Wirshing. 
 - New York :  McGraw-Hill,  1983. 
 - 348 p. :  ill. ;  28 cm. 
<br/><br/>Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engineering drawings.<br/>Mechanical drawing.