Census of India,1971 <br/><br/>
General economic tables .V.19, .Tamil Nadu Pt. II-B(1) (B-1 Part A and B-II) 
Census of India,1971 
 -  1971 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>Y:5.211sN71, L1.19-2B1