Drafting : Technology and practice 
Spence, William P. 
 - Third edition. 
 -  Glencoe/ McGraw-Hill.  1991 
 - 799 pages. 
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<br/><br/><label>ISBN: </label>0-02-676290-0 
<br/><br/><label>Dewey Class. No.: </label>741.022 Sp3d 1991