Steinberg, Christian E W <br/><br/>
Ecology of humic substances in freshwater  determinants from geochemistry to ecological niches 
Christian E. W. Steinberg. 
 - Berlin  Springer  2003 
 - 440p.: ill.; 23cm. 
<br/><br/><label>ISBN: </label>3-540-43922-6. 
<br/><br/><label>Dewey Class. No.: </label>574.52632  / S72E