Census of India 1971 <br/><br/>
Language handbook on mother tongue in census 

 - Delhi  The Manager of Publications  1972 
 - 340+p. 
 - Census of India 1971. Census Centenary Monograph No. 10 .
<br/><br/><label>Dewey Class. No.: </label>A81x54 In2/71/Mon10