United Nations Development Program. (1977). Summary instructions for the preparation of project document. [United Nation Development Programn].
Citazione stile Chigago Style (17a edizione)United Nations Development Program. Summary Instructions for the Preparation of Project Document. Manila: [United Nation Development Programn], 1977.
Citatione MLA (9a ed.)United Nations Development Program. Summary Instructions for the Preparation of Project Document. [United Nation Development Programn], 1977.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.