Choudhury,S.K.Hajra  <br/><br/>
Elements of Workshop Technology Vol I 

 - 18th Ed. 
 - Bombai  Media Promoters and Publishers PVT.LTD.  1979 
 - p.457 
<br/><br/><label>ISBN: </label>8185099154 
<br/><br/><label>Subjects--Topical Terms: </label> TAPPING AND SCREWING  FERROUS METALS 
<br/><br/><label>Dewey Class. No.: </label>621.75 H154