Annual report / 
Heavy Engineering Corporation Ltd (Ranchi, A Govt. of India Enterprise) 
 - Ranchi :  HECL ,  1960-1979 
 - v  ;  31 cm. 
 - Anual 
 - 1960-1979 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Industries--India--Directories
<br/><br/><label>Dewey Class. No.: </label>681.762