APA (7th ed.) Citation

Summer Institute of Linguistics (Papua New Guinea). (1973). Phonologies of three languages of Papua New Guinea. Summer Institute of Linguistics.

Chicago Style (17th ed.) Citation

Summer Institute of Linguistics (Papua New Guinea). Phonologies of Three Languages of Papua New Guinea. Ukarumpa: Summer Institute of Linguistics, 1973.

MLA (9th ed.) Citation

Summer Institute of Linguistics (Papua New Guinea). Phonologies of Three Languages of Papua New Guinea. Summer Institute of Linguistics, 1973.

Warning: These citations may not always be 100% accurate.