Papua New Guinea. Department of Education. (1976). Secondary science syllabus: Teachers guide, Form 3 (Trial ed.). Department of Education.
Цитирование в стиле Чикаго (17-е изд.)Papua New Guinea. Department of Education. Secondary Science Syllabus: Teachers Guide, Form 3. Trial ed. Port Moresby: Department of Education, 1976.
Цитирование MLA (9-е изд.)Papua New Guinea. Department of Education. Secondary Science Syllabus: Teachers Guide, Form 3. Trial ed. Department of Education, 1976.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.