Citazione Stile APA (7a Edizione)
Engel, E., & Valdés, R. (2000). Optimal fiscal strategy for oil exporting countries. International Monetary Fund.
Citazione stile Chigago Style (17a edizione)
Engel, Eduardo, e Rodrigo Valdés. Optimal Fiscal Strategy for Oil Exporting Countries. Washington: International Monetary Fund, 2000.
Citatione MLA (9a ed.)
Engel, Eduardo, e Rodrigo Valdés. Optimal Fiscal Strategy for Oil Exporting Countries. International Monetary Fund, 2000.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.