National Investment and Development Authority (Papua New Guinea). (1975). Papua New Guinea: Handbook for industrialists. National Investment and Development Authority.
Chicago-viite (17. p.)National Investment and Development Authority (Papua New Guinea). Papua New Guinea: Handbook for Industrialists. [Port Moresby]: National Investment and Development Authority, 1975.
MLA-viite (9. p.)National Investment and Development Authority (Papua New Guinea). Papua New Guinea: Handbook for Industrialists. National Investment and Development Authority, 1975.
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