Census of india,1961: monograph sr.  (Vol.1,Pt.11.C.1 Inquiries into the spoken languages of India : from early times to census of India 1901) 

 - Delhi  Mang. Of Pub.  1969 
 - 25,393p. 
<br/><br/><label>Dewey Class. No.: </label>Y1:5s2:N61  / J1.11C.1