Papua New Guinea. (1967). Economic development of Papua and New Guinea. Dept. of Information and Extension Services.
Citace podle Chicago (17th ed.)Papua New Guinea. Economic Development of Papua and New Guinea. Port Moresby: Dept. of Information and Extension Services, 1967.
Citace podle MLA (8th ed.)Papua New Guinea. Economic Development of Papua and New Guinea. Dept. of Information and Extension Services, 1967.
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