PUROHIT, S.S. <br/><br/>
A TEXT BOOK OF ENVIRONMENTAL SCIENCE 

 - DIBRUGARH  STUDENT EMPORIUM  2004 
 - 397:  24CM. 
<br/><br/><label>Subjects--Index Terms: </label>Ecology 
<br/><br/><label>Dewey Class. No.: </label>577 PUR