Investigation of the Okavango Delta as a primary water resource for Botswana

Författare
(Report prepared for the government of Botswana by the Food and Agriculture Organization of the United Nations acting as executing agency for the United Nations Development Programme)
Språk
Engelska
Förlag År Ort Om boken ISBN
UNDP, FAO 1977 Botswana, Gaborone 2 vol.