Adams, J. G. U. (1970). The spatial structure of the economy of West Africa. University of London.
Lua i Stíl Chicago (17ú heag.)Adams, John Gordon Underwood. The Spatial Structure of the Economy of West Africa. University of London, 1970.
Lua MLA (8ú heag.)Adams, John Gordon Underwood. The Spatial Structure of the Economy of West Africa. University of London, 1970.
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