Bhatt, N. D. <br/><br/>
Elementary Engineering Drawing  Plane and Solid Geometry 

 - 49 ed. 
 - India  Charotar Publishing House  2006 
 - P.600 
<br/><br/><label>ISBN: </label>8185594589 
<br/><br/><label>Subjects--Topical Terms: </label> Sheet Layot  Pencil Drawings  Conic section  Auxiliary Planes 
<br/><br/><label>Dewey Class. No.: </label>742 B51E