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.