Papua-Neuguinea Department of Education. (1987). Social science pupil book (First published 1987.). Department of Education Papua New Guinea.
Chicago-Zitierstil (17. Ausg.)Papua-Neuguinea Department of Education. Social Science Pupil Book. First published 1987. Waigani: Department of Education Papua New Guinea, 1987.
MLA-Zitierstil (9. Ausg.)Papua-Neuguinea Department of Education. Social Science Pupil Book. First published 1987. Department of Education Papua New Guinea, 1987.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.