Census of India 1971 <br/><br/>
West Bengal: general economic tables 

 - Delhi  The Contorller of Publications  n.d. 
 - 797+p. 
 - Census of India 1971. Series-22, West Bengal. Part II-B (ii) .
<br/><br/><label>Dewey Class. No.: </label>A81x54 In2/71/22/Pt 2 B/2