Trivedi, R.N.  x <br/><br/>
A text book of environmental sciences  x 

 - 1 
 - New Delhi  Anmol pub.  1997 
 - xi, 472 
<br/><br/>x 
<br/><br/><label>ISBN: </label>8174885447 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental Environmental 
<br/><br/><label>Dewey Class. No.: </label>628.168/T841t