TY  - GEN
AU  - George Ley...[.et al.].
AU  - Baltissen, Gerard
AU  - Veldkamp, Wietze
AU  - Nyaki, Adolf
AU  - Schrader, Ted
TI  - Towards intergrated soil fertility management in Tanzania: developing farmers' options and responsive policies in the context of prevailing agro-ecologiical, socio-economic and institutional conditions 
SN  - 90 68321 455
U1  - 631.422 967 822 LEY 
PY  - 2002///
CY  - Amsterdam
PB  -  KIT Publishers
KW  - Soil science
KW  - Tanzania
KW  - Soil fertility
N1  - Includes bibliographical references
ER  -