APA (7th ed.) Citation

Papua New Guinea & Papua New Guinea. (1973). Papua New Guinea's improvement plan 1973-74: Summary version. The Office ].

Chicago Style (17th ed.) Citation

Papua New Guinea and Papua New Guinea. Papua New Guinea's Improvement Plan 1973-74: Summary Version. [Port Moresby: The Office ], 1973.

MLA (9th ed.) Citation

Papua New Guinea and Papua New Guinea. Papua New Guinea's Improvement Plan 1973-74: Summary Version. The Office ], 1973.