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Washington, DC: The World Bank, 1988
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Washington, D.C: World Bank, 2011 ; 2011
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Washington, D.C: The World Bank, 2003
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World Bank, Washington, DC, 2003
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World Bank, Washington, DC, 2003
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Blackwell Scientific Publications, 1987
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Wiley, 1987
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Informa UK Limited, 1989
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Informa UK Limited, 1986
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Elsevier BV, 1987
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SAGE Publications, 2003