TY  - BOOK
AU  - Kumada, Kyoichi.
TI  - Chemistry of soil organic matter
T2  - Developments in soil Science, 17
U1  - 631.417.7:547 M7 
PY  - 1987///
CY  - Tokyo
PB  - Japan Scientific Societies Press
KW  - Kyoichi Kumada 
KW  - Soil Chemistry,Soil organic matter
ER  -