Donaldson, D. J., Sader, F., & Wagle, D. M. (1997). Foreign direct investment in infrastructure: The challenge of Southern and Eastern Africa. World Bank.
Lua i Stíl Chicago (17ú heag.)Donaldson, David J., Frank Sader, agus Dileep M. Wagle. Foreign Direct Investment in Infrastructure: The Challenge of Southern and Eastern Africa. Washington, D.C: World Bank, 1997.
Lua MLA (9ú heag.)Donaldson, David J., et al. Foreign Direct Investment in Infrastructure: The Challenge of Southern and Eastern Africa. World Bank, 1997.
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