Citazione Stile APA (7a Edizione)
ProQuest (Firm). (2011). Aid for trade at a glance 2011: Showing results. World Trade Organization : OECD.
Citazione stile Chigago Style (17a edizione)
ProQuest (Firm). Aid for Trade at a Glance 2011: Showing Results. [Paris]: World Trade Organization : OECD, 2011.
Citatione MLA (9a ed.)
ProQuest (Firm). Aid for Trade at a Glance 2011: Showing Results. World Trade Organization : OECD, 2011.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.