Stanhope, J. M. (1980). The language of the Rao people, Gengabau, Madang Province, Papua New Guinea. Dept. of Linguistics, Research School of Pacific Studies, Australian National University for Linguistic Circle of Canberra.
Παραπομπή σε μορφή Chicago (17η εκδ.)Stanhope, John M. The Language of the Rao People, Gengabau, Madang Province, Papua New Guinea. Canberra: Dept. of Linguistics, Research School of Pacific Studies, Australian National University for Linguistic Circle of Canberra, 1980.
Παραπομπή σε μορφή MLA (9th εκδ.)Stanhope, John M. The Language of the Rao People, Gengabau, Madang Province, Papua New Guinea. Dept. of Linguistics, Research School of Pacific Studies, Australian National University for Linguistic Circle of Canberra, 1980.
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