Crivelli, E., & Gupta, S. (2014). Resource Blessing, Revenue Curse?: Domestic Revenue Effort in Resource-Rich Countries. International Monetary Fund.
Dyfyniad Arddull ChicagoCrivelli, Ernesto, and Sanjeev Gupta. Resource Blessing, Revenue Curse?: Domestic Revenue Effort in Resource-Rich Countries. Washington, D.C.: International Monetary Fund, 2014.
Dyfyniad MLACrivelli, Ernesto, and Sanjeev Gupta. Resource Blessing, Revenue Curse?: Domestic Revenue Effort in Resource-Rich Countries. International Monetary Fund, 2014.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.