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The cooper economy of Zaire
Mikesell, Raymond F., (1974)
Deforestation trends in the Congo Basin : reconciling economic growth and forest protection
Megevand, Carole, (2013)
Through the Congo Basin
Fraser, Douglas Clifford, (1927)
Land tenure and agricultural development in Zaire, 1895-1961
Harms, Robert W., (1974)