Australian International Development Assistance Bureau. (1990). Papua New Guinea: Economic situation and outlook. Australian Government Publishing Service.
Citazione stile Chigago Style (17a edizione)Australian International Development Assistance Bureau. Papua New Guinea: Economic Situation and Outlook. Canberra: Australian Government Publishing Service, 1990.
Citatione MLA (9a ed.)Australian International Development Assistance Bureau. Papua New Guinea: Economic Situation and Outlook. Australian Government Publishing Service, 1990.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.