International Monetary Fund. (1988). World Economic and Financial Surveys, Primary Commodities, 1988: Primary Commodities. International Monetary Fund.
Citazione stile Chigago Style (17a edizione)International Monetary Fund. World Economic and Financial Surveys, Primary Commodities, 1988: Primary Commodities. Washington, D.C.: International Monetary Fund, 1988.
Citatione MLA (8a ed.)International Monetary Fund. World Economic and Financial Surveys, Primary Commodities, 1988: Primary Commodities. International Monetary Fund, 1988.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.