Baer, Charles J <br/><br/>
Electrical and electronics drawing 
by Charles J. Baer 
 - 3rd ed. 
 - New York  MacGraw-Hill  1973 
 - ix, 404 p. : ill. ; 24 cm. 
<br/><br/>Bibliography: p. 389-391. 
<br/><br/><label>ISBN: </label>0070030081 
<br/><br/><label>LCCN: </label>78-038811 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electric drafting<br/>Electronic drafting