APA (7e ed.) Bronvermelding

Egara, S. S. (1987). Oro Bay harbour groundwater supply investigation, Oro Province. Geological Survey of Papua New Guinea.

Chicago (17e ed.) Bronvermelding

Egara, S. S. Oro Bay Harbour Groundwater Supply Investigation, Oro Province. [Port Moresby]: Geological Survey of Papua New Guinea, 1987.

MLA (9e ed.) Bronvermelding

Egara, S. S. Oro Bay Harbour Groundwater Supply Investigation, Oro Province. Geological Survey of Papua New Guinea, 1987.