APA
York R. C., Zhan Zaijin & International Monetary Fund. (2009). Fiscal Vulnerability and Sustainability in Oil-Producing Sub. Washington DC: IMF.
Chicago
York Robert C, Zhan Zaijin and International Monetary Fund. 2009. Fiscal Vulnerability and Sustainability in Oil-Producing Sub. Washington DC: IMF.
Harvard
York R. C., Zhan Zaijin and International Monetary Fund. (2009). Fiscal Vulnerability and Sustainability in Oil-Producing Sub. Washington DC: IMF.
MLA
York Robert C, Zhan Zaijin and International Monetary Fund. Fiscal Vulnerability and Sustainability in Oil-Producing Sub. Washington DC: IMF. 2009.