International Monetary Fund. (1989). World Economic and Financial Surveys, Primary Commoditie, 1989: Primary Commodities. International Monetary Fund.
Citazione stile Chigago Style (17a edizione)International Monetary Fund. World Economic and Financial Surveys, Primary Commoditie, 1989: Primary Commodities. Washington, D.C.: International Monetary Fund, 1989.
Citatione MLA (8a ed.)International Monetary Fund. World Economic and Financial Surveys, Primary Commoditie, 1989: Primary Commodities. International Monetary Fund, 1989.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.