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4
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Africa, the devastated continent? : man's impact on the ecology of Africa / by Antoon de Vos.
- 86
- Junk,
- 1975.
- The Hague :
-
Insects as human food : a chapter of the ecology of man / by F.S. Bodenheimer.
- Junk,
- 1951.
- The Hague :
-
Plants, man and the land in the Vilcanota valley of Peru / by Daniel W. Gade.
- 878.9
- Junk,
- 1975.
- The Hague :
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Lake Kariba : a man-made tropical ecosystem in Central Africa / ed. by E.K. Balon and A.G. Cochie.
- 865.4
- Junk,
- 1974.
- The Hague :