Bhatt N.D. <br/><br/>
Elementary Engineering Drawings  Plan and  Solid Geometry 

 - 24th Ed. 
 - Anand  Charotar   1985 
 - p.600 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Lines, Lettering  and Dimensioning<br/>Scales<br/>Orthographic Projection
<br/><br/><label>Dewey Class. No.: </label>744.422 B575E