Census of India 1981 <br/><br/>
Kerala: general economic tables 

 - Delhi  The Controller of Publications  1987 
 - 517+p. 
 - Census of India 1981. Series-10, Kerala. Part-III A & B (iii) .
<br/><br/> Contents: Tables B-21 & B-22 
<br/><br/><label>Dewey Class. No.: </label>A81x54 In2/81/10/Pt3A&B/3