Kumar, A <br/><br/>
A texbook of environmental science/ 
A. kumar 
 - New Delhi  APH  2004 
 - xii,376p.:ill.;  Hbk 
<br/><br/><label>ISBN: </label>8176485896 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental sciences
<br/><br/><label>LC Class. No.: </label>GE70.K8 2004