Filing 

 - Calcutta  ; Ministry Of Labour Directorate General Of Employment And Training Central Staff Training And Research Institute 
 - 45p. 
<br/><br/><label>ISBN: </label> 4.95 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engineering<br/>Mechanical Engineering
<br/><br/><label>Dewey Class. No.: </label>621  / FIL