dr.h.  kaur <br/><br/>
pragati enviromental chemistry  fof b.e ,b.sc.(hons).and m. thech .students of various univrsty 

 - meerut   pragathi prakashan  2005 
<br/><br/><label>ISBN: </label>978-93-50006-190-9 
<br/><br/><label>Dewey Class. No.: </label>577.14  / KAU/P