APA (7 ম সংস্করণ) উদ্ধৃতি

Papua New Guinea, Geological Survey of Papua New Guinea, & George, J. E. (1978). Hydrogeological investigations 1977. Office of Minerals and Energy.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Papua New Guinea, Geological Survey of Papua New Guinea, এবং J. E. George. Hydrogeological Investigations 1977. [Port Moresby]: Office of Minerals and Energy, 1978.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Papua New Guinea, et al. Hydrogeological Investigations 1977. Office of Minerals and Energy, 1978.