census of India,1971 <br/><br/>
General economic tables V .1 India Pt. 2B(4) 

 - India  Govt. press           1971 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>Y:5.2sN71, L1.1-2B(4)