APA (7th ed.) Citation

Survey Congress (23rd : 1988 : Lae, Papua New Guinea), & Association of Surveyors of Papua New Guinea. (1988). The Association of Surveyors of Papua New Guinea 23rd Survey Congress, June 26th - 29th, 1988. [Association of Surveyors of Papua New Guinea].

Chicago Style (17th ed.) Citation

Survey Congress (23rd : 1988 : Lae, Papua New Guinea), and Association of Surveyors of Papua New Guinea. The Association of Surveyors of Papua New Guinea 23rd Survey Congress, June 26th - 29th, 1988. Lae: [Association of Surveyors of Papua New Guinea], 1988.

MLA (9th ed.) Citation

Survey Congress (23rd : 1988 : Lae, Papua New Guinea), and Association of Surveyors of Papua New Guinea. The Association of Surveyors of Papua New Guinea 23rd Survey Congress, June 26th - 29th, 1988. [Association of Surveyors of Papua New Guinea], 1988.