TY  - BOOK
AU  - Powell , J .M / Fernan dez -Rivera, S. ETAL
TI  - Livestock and sustainable nutrients cyling in mixed farming systems of Sub-Saharan African Vol. 1 : Conference Summary
PY  - 1993///
CY  - Addis Ababa
PB  - Int. Livestock Centre for Africa
KW  - Livestock -Breeding -Africa --Sub --Sahara
KW  - Agricultural Systems - Mixed -Africa -Sub Sahara
ER  -