Ambasht, R.S.Ambasht, P.K. <br/><br/>
Environment and pollution :  an ecological approach. 

 - 3rd. 
 - New Delhi :  CBS,  1999. 
 - ix, 314 pages : illustrations. 
<br/><br/> Includes index.  Includes bibliography. 
<br/><br/><label>ISBN: </label>8123906528 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology.<br/>Pollution.<br/>Ecology.<br/>Pollution.