Choudhury, Harja, S. K. <br/><br/>
Elements of workshop technology - v.1  manufacturing processing 
by S. K. Harja Choudhury, S. C. Bhattacharya. 
 -  Media Promotion & Publications Limited  1971 
<br/><br/><label>Dewey Class. No.: </label>621.75  / N71.1