APA
Banco Mundial, . (197). Commodity trade and price trends = Tendances du commerce et des prix des produits de base = Tendencias del comercio y de los precios de los productos básicos. Washington: The World Bank, Commodity Studies and Projections Division, Economic Analysis and Projections Department, Economics and Research Staff.
Chicago
Banco Mundial, . 197. Commodity trade and price trends = Tendances du commerce et des prix des produits de base = Tendencias del comercio y de los precios de los productos básicos. Washington: The World Bank, Commodity Studies and Projections Division, Economic Analysis and Projections Department, Economics and Research Staff.
Harvard
Banco Mundial, . (197). Commodity trade and price trends = Tendances du commerce et des prix des produits de base = Tendencias del comercio y de los precios de los productos básicos. Washington: The World Bank, Commodity Studies and Projections Division, Economic Analysis and Projections Department, Economics and Research Staff.
MLA
Banco Mundial, . Commodity trade and price trends = Tendances du commerce et des prix des produits de base = Tendencias del comercio y de los precios de los productos básicos. Washington: The World Bank, Commodity Studies and Projections Division, Economic Analysis and Projections Department, Economics and Research Staff. 197.