TY  - BOOK
AU  - Pieri, Christian J. M. G.
TI  - Fertility of soils: a future for farming in the West African Savannah
T2  - Springer series in physical environment
SN  - 0-387-53283-8
U1  - 631.45 
PY  - 1992///
CY  - Berlin
PB  - Springer-Verlag
KW  - Suelos
KW  - Fertilidad
KW  - Materia orgánica
KW  - Africa
ER  -