National Planning Association. Center for Development Planning. Development planning project semi-annual interim administrative progress report. s.n.].
Citazione stile Chigago Style (17a edizione)National Planning Association. Center for Development Planning. Development Planning Project Semi-annual Interim Administrative Progress Report. [Washington, D.C: s.n.].
Citatione MLA (9a ed.)National Planning Association. Center for Development Planning. Development Planning Project Semi-annual Interim Administrative Progress Report. s.n.].
Attenzione: Queste citazioni potrebbero non essere precise al 100%.