Labys, W. C. (1988). Recent developments in commodity modeling: A World Bank focus. International Economics Dept., World Bank.
Chicago-viite (17. p.)Labys, Walter C. Recent Developments in Commodity Modeling: A World Bank Focus. Washington, D.C: International Economics Dept., World Bank, 1988.
MLA-viite (9. p.)Labys, Walter C. Recent Developments in Commodity Modeling: A World Bank Focus. International Economics Dept., World Bank, 1988.
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