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Core and periphery : the economic transformation of Polish space
Rykiel, Zbigniew, (1997)
Polish core and periphery under economic transformation
Rykiel, Zbigniew, (1995)
Past convergence within Europe: core-periphery diversity in modern economic development
Berend, Iván T., (2003)
Tourism in the Gambia : Problems and proposals
Thompson, Craig, (1995)
The marketing of foodstuffs in the Gambia, 1400-1980 : a geographical analysis
Barrett, Hazel R., (1988)
The marketing of foodstuffs in the Gambia, 1400 - 1980 : a geographical analysis