Helpert, Erich A. <br/><br/>
Environmental chemistry 

 - Delhi  IVY Publishing House  2003 
 - xviii,314p. 
<br/><br/><label>ISBN: </label> RS 575.00 
<br/><br/><label>Source: </label> RS 575.00 
<br/><br/><label>Dewey Class. No.: </label>540 HEL