Alagappan, Valli <br/><br/>
Science :  environmental studies one/ 
Valli Alagappan, Shirley Dyall; illustrations : Lalitha ; design : J. Menon. 
 - Chennai :  Macmillan,  2002 
 - 78 p. :  col.ill.;  28 cm. 
<br/><br/> First published `1995` 
<br/><br/><label>ISBN: </label>0333922930 (pbk)  Rs. 70.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental science--Examinations, questions, etc.
<br/><br/><label>Dewey Class. No.: </label>333.714