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Portugal and the scramble for Africa, 1875 - 1891
Axelson, Eric Victor, (1967)
Britain and Germany in Africa : imperial rivalry and colonial rule
Gifford, Prosser, (1967)
Portuguese settlement on the Zambesi : exploration, land tenure and colonial rule in East Africa
Newitt, M. D. D., (1973)
Food
Hammond, Richard J., (1951)
The growth of policy
Studies in administration and control
Hammond, Richard J., (1956)