Elankumaran, C. <br/><br/>
Ground water quality patterns of the Jaffna - Valikamam region: a statistical retrospective study 

 - Jaffna :  Department of economics, University of Jaffna,  1994. 
 - viii, 69 p. 
<br/><br/> Includes appendix 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ground water - Jaffna - Valikamam
<br/><br/><label>Dewey Class. No.: </label>910.11  / ELA