Report on the grinding wheels industry 

 - Bombay  The goverment central press         1946 
 - 24p.,Appp.21-p24  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>X9(D6, 853):531.2.N45t, H6