Swadling, P. (1973). The human settlement of the Arona Valley, Eastern Highland District, Papua New Guinea. Papua New Guinea Electricity Commission.
Chicago Style (17th ed.) CitationSwadling, Pamela. The Human Settlement of the Arona Valley, Eastern Highland District, Papua New Guinea. [Port Moresby]: Papua New Guinea Electricity Commission, 1973.
MLA (9th ed.) CitationSwadling, Pamela. The Human Settlement of the Arona Valley, Eastern Highland District, Papua New Guinea. Papua New Guinea Electricity Commission, 1973.
Warning: These citations may not always be 100% accurate.