TY  - BOOK
TI  -  Soil fertility initiative for Sub-Saharan Africa : : proceedings of the SFI/FAO consultation. Rome Italy, 19-20 1998
SN  -  9251042985
PY  - 1999///
CY  -  Rome : 
PB  -  Food and Agriculture Organization, 
KW  -  Soil fertility
ER  -