TY  - BOOK
AU  - Tinsley,J.
AU  - Darbyshire,J.F.
TI  - Biological processes soil fertility
U1  - 574.52604 
PY  - 1984///
CY  - The Netherlands
PB  - Martinus Nijhoff
KW  - Biological Processes
KW  - Environment
KW  - Soil Fertility
ER  -