India. Census of -. 1961 <br/><br/>
Subsidiary tables B-I.6 and B-II.3; workers from 1901/11 to 1961 by States and Union Territories and by Cities   

 - Delhi  Manager of Publication  1968 
 - 145p. 
 - Paper No. I of 1967 .
<br/><br/>  
<br/><br/><label>Dewey Class. No.: </label>312.54  / In39.ST