Nayar, K. R. <br/><br/>
Ecology and health :  a systems approach / 
K. R. Nayar. 
 - New Delhi :  APH Pub.,  1998. 
 - viii, 210 p. ; 
<br/><br/><label>ISBN: </label>8176480193 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology---(kerala) India.
<br/><br/><label>Dewey Class. No.: </label>577.095483  / Ec