TY  - BOOK
AU  - Allison,F.E., x
AU  - x
TI  - Soil organic matter and its role in crop production: x
SN  - x
U1  - 631.4/ALS 
PY  - 1973///
CY  - Amsterdam
PB  - Elsevier
KW  - Soilk Conservatin
KW  - Bacteriology - Agricultural
N1  - x
ER  -