References
- Barbour , K. M. 1964 . The Republic of the Sudan: A Regional Geography. London : University of London Press. .
- Boateng , E. A. 1978 . A Political Geography of Africa. Cambridge : Cambridge University Press. .
- Bowman , I. 1934 . Geography in Relation to the Social Sciences. 1 New York : Charles Scribner's and Sons .
- Buchanan , K. M. and Pugh , J. C. 1955 . Land and People in Nigeria: The Human Geography of Nigeria and Its Environmental Background. London : University of London Press. .
- Dickson , R. E. 1970 . Regional Ecology: The Study of Man's Environment. New York : Wiley. .
- Fitzgerald , W. and Brice , W. C. 1967 . Africa: A Social, Economic, and Political Geography of its Major Regions. London : Methuen. .
- Grove , A. T. 1967 . Africa South of the Sahara. Oxford : Oxford University Press. .
- Hartshorne , R. 1939 . The Nature of Geography. Lancaster , PA : The Association of American Geographers. .
- Mabogunje , A. L. 1968 . Urbanization in Nigeria. London : University of London. .
- Mitchell , J. B. 1954 . Historical Geography. London : English Universities Press. .
- Morgan , W. T. W. 1973 . East Africa. London : Longman. .
- Morgan , W. B. and Pugh , J. H. 1969 . West Africa. London : Methuen. .
- Ojo , A. 1973 . West Africa. London : Collins. .
- Pritchard , J. M. 1969 . Africa: The Geography of a Changing Continent. New York : Africana Publishing Corporation. .
- Stamp , L. D. 1964 . Africa: A Study in Tropical Development. New York : Wiley. .
- Stuckey , W. K. 1968 . “The Swinging New Geography.” . Chicago Tribune Sunday Magazine , : 20 – 42 . September 29
- Udo , R. K. 1969 . Geographical Regions of Nigeria. Berkeley : Univerisity of California Press. .
- Udo , R. K. 1973 . Examination Guidelines for A Level Geography.
- Udo , R. K. 1975 . Migrant Tenant Farmers of Nigeria: A Geographical Study of Rural Migrations in Nigeria. Lagos : African Universities Press. .
- Udo , R. K. 1978 . A Comprehensive Geography of West Africa. Ibadan : Heinemann Educational Books. .
- Udo , R. K. 1982 . Food Production and Agricultural Development Strategies in Nigeria. Tokyo , , Japan : Institute of Developing Economies. .
- White , H. P. and Gleave , M. B. 1971 . An Economic Geography of West Africa. London : Bell. .
- Wellington , J. H. 1955 . Southern Africa: A Geographical Study. Cambridge : Cambridge University Press. .
- Wrigley , E. A. 1965 . “Changes in the Philosophy of Geography.” . In Frontiers in Geographical Teaching. Edited by: Charley , Richard J. and Haggett , Peter . 3 – 20 . London : Methuen .