Addenda to hand book of indigenous manufactures of engineering stores :  Directorate of Public Relations and Publications  / 
Directorate General of Technical Development New Delhi (India) 
 - 12th ed. 
 - New Delhi :  The Controller of publications,  1975 
 - 60 p.  ;  25 cm. 
<br/><br/><label>Dewey Class. No.: </label>681