Census of India 1981 <br/><br/>
India: special tables for scheduled tribes on mother tongue and bilingualism 

 - Delhi  Controller of Publications  1991 
 - 1424p. 
 - Census of India 1981. Series-1, India. Part-IX (ii) .
<br/><br/> Contents: Tables ST-8 and ST-9 
<br/><br/><label>Dewey Class. No.: </label>A81x54 In2/81/1/Pt9/2