Roy, k.p; hajra choudury, s.k; hajra choudury, a.k & battacharyya, s.c <br/><br/>
Elements of mechanical engineering 

 - 5th ed 
 - Media promptors & publishers pvt.ltd, Mumbai  1925 
 - xiii,561 
<br/><br/><label>ISBN: </label>81.85099.05.7 
<br/><br/><label>Dewey Class. No.: </label>621 Roy