World Trade Organization. (2009). WTO agreements series: Agriculture. World Trade Organization.
Citazione stile Chigago Style (17a edizione)World Trade Organization. WTO Agreements Series: Agriculture. Geneve: World Trade Organization, 2009.
Citatione MLA (9a ed.)World Trade Organization. WTO Agreements Series: Agriculture. World Trade Organization, 2009.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.