APA (7th ed.) Citation

Papua New Guinea Harbours Board. (1978). Handbook of information (Rev. ed.). The Board.

Chicago Style (17th ed.) Citation

Papua New Guinea Harbours Board. Handbook of Information. Rev. ed. [Port Moresby]: The Board, 1978.

MLA (9th ed.) Citation

Papua New Guinea Harbours Board. Handbook of Information. Rev. ed. The Board, 1978.