Buys,, Piet Road network upgrading and overland trade expansion in Sub-Saharan Africa / Piet Buys, Uwe Deichmann, David Wheeler

Road network upgrading and overland trade expansion in Sub-Saharan Africa / Piet Buys, Uwe Deichmann, David Wheeler . - Washington : World Bank, 2006 . - 58 p. : il. 28 cm . - (Policy research, Working paper; 4097)
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