Humic substances in soil, sediment, and water  geochemistry, isolation, and characterization 
edited by George R. Aiken ... [et al.] 
 - New York  Wiley  c1985 
 - xiii, 692 p.  ill  25 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Humic acid<br/>Humus<br/>Soil chemistry<br/>Sediments (Geology)<br/>Water chemistry
<br/><br/><label>Dewey Class. No.: </label>551.9