Shan,HS <br/><br/>
Work study and economics 

 - 2nd 
 - New Delhi  Dhanpat Rai & Co.(Pvt.)Ltd.  1992 
 - 310 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mechanical Engineering
<br/><br/><label>Dewey Class. No.: </label>624  / SH-W