Columbia subject headings:
Food supply--Africa, Southern.
Food supply--Africa.
Land tenure--Africa, Southern.
Land tenure--Africa.
Sustainable development--Africa, Southern.
Sustainable development--Africa.
Harvard subject headings:
Food supply--Africa, Southern.
Land tenure--Africa, Southern.
Sustainable development--Africa, Southern
Princeton subject headings:
Food supply--Africa, Southern.
Land tenure--Africa, Southern.
Sustainable development--Africa, Southern.