TY  - BOOK
AU  - Unesco
TI  - Tropical grazing land : ecosystems / 
SN  - 9231016113
U1  - 581.52643 
PY  - 1979///
CY  - Paris
PB  - UNESCO, 
KW  - Plants
KW  - Grasslands
KW  - Grazing
KW  - Crops
KW  - Ecology
ER  -