(1991). The importance of the Ok Tedi mine to Papua New Guinea. Centre for International Economics.
Chicagoスタイル(17版)引用形式The Importance of the Ok Tedi Mine to Papua New Guinea. Canberra: Centre for International Economics, 1991.
MLA(9版)引用形式The Importance of the Ok Tedi Mine to Papua New Guinea. Centre for International Economics, 1991.
警告: この引用は必ずしも正確ではありません.