Gupta R.S. <br/><br/>
Work measurement  

 - 4 
 - New Delhi   N.P.C.  1989 
 - 30; 24cmsp 
<br/><br/><label>ISBN: </label>81-7014-011-0 
<br/><br/><label>Dewey Class. No.: </label>331.87  / gur/wor