Ambasht, R.S. <br/><br/>
Environment and pollution: An ecological approach 

 - Varanasi  Students Friends  1990 
 - 231 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecological approach, Pollution
<br/><br/><label>Dewey Class. No.: </label>577.4:628 A45E