TY  - GEN
AU  - Allison, F E
TI  - Soil organic matter its role in crop production
T2  - Developments in soil science 3
SN  - 0-444-41017-1
U1  - 631.42 ALL 
CY  - Newyork, Elsevier scientific Publishing Company
KW  - Soil fertility/crop production/soil-organic matter/soil-croip production
ER  -