Cita APA (7th ed.)
ProQuest (Firm). (2011). Aid for trade at a glance 2011: Showing results. World Trade Organization : OECD.
Cita Chicago (17th ed.)
ProQuest (Firm). Aid for Trade at a Glance 2011: Showing Results. [Paris]: World Trade Organization : OECD, 2011.
Cita MLA (9th ed.)
ProQuest (Firm). Aid for Trade at a Glance 2011: Showing Results. World Trade Organization : OECD, 2011.
Atenció: Aquestes cites poden no estar 100% correctes.