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Farming systems in Africa : the great lakes highlands of Zaire, Rwanda, and Burundi
Jones, William I., (1984)
Från svedjebruk till hyggesbränning
Arnborg, Tore, (1949)
The Bushfire problem in public lands
(1967)
Cassava in shifting cultivation : a systems approach to agricultural technology development in Africa
Fresco, Louise O., (1986)
Genetically modified organisms in food and agriculture : where are we? Where are we going?
Fresco, Louise O., (2001)
Sustainable agro-food chains : challenges for research and development
Fresco, Louise O., (2006)