United Nations Development Programme & Clark, H. (2010). UNDP in action 2009: Delivering on commitments. Office of Communications/Partnership Bureau United Nations Development Programme.
Citazione stile Chigago Style (17a edizione)United Nations Development Programme e Helen Clark. UNDP in Action 2009: Delivering on Commitments. New York: Office of Communications/Partnership Bureau United Nations Development Programme, 2010.
Citatione MLA (9a ed.)United Nations Development Programme e Helen Clark. UNDP in Action 2009: Delivering on Commitments. Office of Communications/Partnership Bureau United Nations Development Programme, 2010.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.