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

 - 19 rev...ed. 
 - Anand  Charotar   1982 
 - p.592 
<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