Columbia subject headings:
Africa, West--Climate.
Agriculture--Africa, West--Maps.
Crops and climate--Africa, West--Maps.
Maps.
Harvard subject headings:
Africa, West--Climate.
Agriculture--Africa, West--Maps.
Crops and climate--Africa, West--Maps.
Princeton subject headings:
Africa, West--Climate.
Agriculture--Africa, West--Maps.
Crops and climate--Africa, West--Maps.