Census of India, 1991 <br/><br/>
Economic tables   Vol. 5, Pt. IIIB- B series, Table B-22 (F), B-23 (F), B-24 (F)    
Census of India, 1991 
 - Andhra Pradesh   Govt. Press          1991 
 - VII, 1157p  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>Y:5.216sN91, P1.2