TY  - BOOK
AU  - Ley,George
TI  - Towards integrated soil fertility management in Tanzania: developing farmers' options and responsive policies in the context of prevailing agro-ecological, socio-economic and institutional conditions 
SN  - 9068321455
U1  - 631.422 TAN 
PY  - 2002///
CY  - Amsterdam, The Netherlands
PB  - Royal Tropical Institute, KIT Publishers
KW  - Soil fertility
KW  - Tanzania
N1  - Includes bibliographical references (p. 89-95)
ER  -