Text Book Of Environmental Polluton & Control (2 Vol.Set) Vol-Ii 
R.N.Trivedi 
 - 1st 
 -  Anmol  1998 
<br/><br/><label>ISBN: </label>8174886397 
<br/><br/><label>Dewey Class. No.: </label>628.540246  / TRI.2