Spence, William Perkins,  1925- <br/><br/>
Drafting technology and practice 
by William P. Spence 
 - Rev 
 - Peoria, Ill.  C. A. Bennett Co.  c1980 
 - 816 p.  ill.  25 cm 
<br/><br/> Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mechanical drawing<br/>Mechanical drawing
<br/><br/><label>Dewey Class. No.: </label>604.2