University of Papua New Guinea. Department of Language. (1977). Teaching at tertiary institutions in Papua New Guinea: A practical guide to language and language-related problems in the classroom. Dept. of Language, UPNG.
Цитирование в стиле Чикаго (17-е изд.)University of Papua New Guinea. Department of Language. Teaching at Tertiary Institutions in Papua New Guinea: A Practical Guide to Language and Language-related Problems in the Classroom. [Port Moresby]: Dept. of Language, UPNG, 1977.
Цитирование MLA (9-е изд.)University of Papua New Guinea. Department of Language. Teaching at Tertiary Institutions in Papua New Guinea: A Practical Guide to Language and Language-related Problems in the Classroom. Dept. of Language, UPNG, 1977.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.