TY  - BOOK
AU  - Stevenson,F.J.
TI  - Humus chemistry ; : genesis, composition, reactions / 
SN  - 0471594741
U1  - 631.417 
PY  - 1994///
CY  - New York
PB  - Wiley
KW  - Humus
KW  - Soil biochemistry
N1  - Includes bibliographical references and index
ER  -