Half yearly spectrum 1976-77 / 
Durgapur Steel Plant 
 - Delhi :  Public Relations Department,  1977 
 - 20 p. ;  30 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Steel industry and trade--India
<br/><br/><label>Dewey Class. No.: </label>338.47672