United Nations Conference on Trade and Development. (2012). Commodities at a glance: Special issue on food security. United Nations.
Citazione stile Chigago Style (17a edizione)United Nations Conference on Trade and Development. Commodities at a Glance: Special Issue on Food Security. New York: United Nations, 2012.
Citatione MLA (9a ed.)United Nations Conference on Trade and Development. Commodities at a Glance: Special Issue on Food Security. United Nations, 2012.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.