WALTHER, John V. <br/><br/>
ESSENTIALS OF GEOCHEMISTRY 

 - 2nd Ed. 
 - MASSACHUSSETTS  Jones and Barlett Publishers, Massachussetts   2010 
<br/><br/><label>ISBN: </label>9789380108148 
<br/><br/><label>Dewey Class. No.: </label>551.9  / WAL/ES