Driscoll, Terence. <br/><br/>
Technical Drawing For Today Book 1 :  A basic drawing course. 

 - London :  Macmillan,  1975. 
 - p. 123:ill ;   cm.15. 
<br/><br/><label>ISBN: </label>0333 184181 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engineering Graphics.<br/>Mechanical Drawing.