MEHRA, M. TYAGI, O.D. <br/><br/>
TEXTBOOK OF ENVIRONMENTAL CHEMISTRY 

 - New Delhi  Anmol Publications Pvt. Ltd., New Delhi   1996 
<br/><br/><label>ISBN: </label>81 7041 352 4 
<br/><br/><label>Dewey Class. No.: </label>577.14  / TYA/TE