Papua New Guinea National Planning Office Aid Centre. (1980). Manual on aid administration. The Centre.
Citazione stile Chigago Style (17a edizione)Papua New Guinea National Planning Office Aid Centre. Manual on Aid Administration. Waigani [Port Moresby]: The Centre, 1980.
Citatione MLA (9a ed.)Papua New Guinea National Planning Office Aid Centre. Manual on Aid Administration. The Centre, 1980.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.