APA (7th ed.) Zitazioa
York, R., & Zhan, Z. (2009). Fiscal vulnerability and sustainability in oil-producing Sub-Saharan African countries. International Monetary Fund.
Chicago Style (17th ed.) Zitazioa
York, Robert, eta Zaijin Zhan. Fiscal Vulnerability and Sustainability in Oil-producing Sub-Saharan African Countries. [Washington, D.C.]: International Monetary Fund, 2009.
MLA (9th ed.) Zitazioa
York, Robert, eta Zaijin Zhan. Fiscal Vulnerability and Sustainability in Oil-producing Sub-Saharan African Countries. International Monetary Fund, 2009.
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