APA-čujuhus (7. p.)
Bartsch, U. (2006). How much is enough?: Monte Carlo simulations of an oil stabilization fund for Nigeria. International Monetary Fund.
Chicago-čujuhus (17. p.)
Bartsch, Ulrich. How Much Is Enough?: Monte Carlo Simulations of an Oil Stabilization Fund for Nigeria. [Washington, D.C.]: International Monetary Fund, 2006.
MLA-čujuhus (9. p.)
Bartsch, Ulrich. How Much Is Enough?: Monte Carlo Simulations of an Oil Stabilization Fund for Nigeria. International Monetary Fund, 2006.
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