APA (7th ed.) Citation

Swadling, P., & Cook, D. (1983). How long have people been in the Ok Tedi impact region? PNG National Museum.

Chicago Style (17th ed.) Citation

Swadling, Pamela, and David Cook. How Long Have People Been in the Ok Tedi Impact Region? Boroko: PNG National Museum, 1983.

MLA (9th ed.) Citation

Swadling, Pamela, and David Cook. How Long Have People Been in the Ok Tedi Impact Region? PNG National Museum, 1983.