Larson, D. F., Varangis, P. N., & Yabuki, N. (1998). Commodity risk management and development. World Bank.
Lua i Stíl Chicago (17ú heag.)Larson, Donald F., Panayotis N. Varangis, agus Nanae Yabuki. Commodity Risk Management and Development. Washington, DC: World Bank, 1998.
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