Census of India, 1991 <br/><br/>
Economic tables   Pt. III B-B series, Table B-14(F), B-15(I) (F), B-15(II) (F), B-16(F), B-17(F) & B-18(F)    

 - Kerala  Govt. Press           1991 
 - VII, 106p  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>Y:5.212sN91, N7.12