Bohn, Hinrich L. <br/><br/>
Soil chemistry/ 
Hinrich L. Bohn, Brian L. McNeal and George A. O'Connor 
 - 3rd Edition ; 
 - New York:  John Wiley % Sons,  c2001. 
 - xi, 307 pages :  illustrations ;  24 cm. 
<br/><br/>Includes bibliographical references<br/>