Summer Institute of Linguistics. Papua New Guinea Branch & Hemmila, R. (1999). Orthography and phonology database: Highlands and Papuan regions. Summer Institute of Linguistics.
Chicago Style (17th ed.) CitationSummer Institute of Linguistics. Papua New Guinea Branch and Ritva Hemmila. Orthography and Phonology Database: Highlands and Papuan Regions. Ukarumpa, Papua New Guinea: Summer Institute of Linguistics, 1999.
MLA (9th ed.) CitationSummer Institute of Linguistics. Papua New Guinea Branch and Ritva Hemmila. Orthography and Phonology Database: Highlands and Papuan Regions. Summer Institute of Linguistics, 1999.
Warning: These citations may not always be 100% accurate.