Papua and New Guinea & Papua and New Guinea. (1968). Tred stoa. Dept. of Information and Extension Services for Division of Business Training and Management, Dept. of Trade and Industry.
Chicagoスタイル(17版)引用形式Papua and New Guinea , Papua and New Guinea. Tred Stoa. Port Moresby: Dept. of Information and Extension Services for Division of Business Training and Management, Dept. of Trade and Industry, 1968.
MLA(9版)引用形式Papua and New Guinea , Papua and New Guinea. Tred Stoa. Dept. of Information and Extension Services for Division of Business Training and Management, Dept. of Trade and Industry, 1968.
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