TY  - BOOK
AU  - Speirs,Mike
AU  - Olsen,Ole
TI  - Indegenous intergrated farming systems in the Sahel / 
SN  - 0821321803
U1  - MISR 630.966 SPE 
PY  - 1992///
CY  - Washington, D. C. : 
PB  - The World Bank , 
KW  - Traditional farming
KW  - Sahel
KW  - Economic aspects
KW  - Agriculture
KW  - Rural development
KW  -  Sahel
KW  -  Economic policy
ER  -