Summer Institute of Linguistics & Papua New Guinea. Summer Institute of Linguistics. (1978). Language planning and grammatical typologies. Summer Institute of Linguistics.
Chicago Style (17th ed.) CitationSummer Institute of Linguistics and Papua New Guinea. Summer Institute of Linguistics. Language Planning and Grammatical Typologies. Ukarumpa: Summer Institute of Linguistics, 1978.
MLA (9th ed.) CitationSummer Institute of Linguistics and Papua New Guinea. Summer Institute of Linguistics. Language Planning and Grammatical Typologies. Summer Institute of Linguistics, 1978.
Warning: These citations may not always be 100% accurate.