Halstead, K. (1988). Social science pupil book (First published 1988.). Department of Education Papua New Guinea.
Chicago-Zitierstil (17. Ausg.)Halstead, Kate. Social Science Pupil Book. First published 1988. Waigani: Department of Education Papua New Guinea, 1988.
MLA-Zitierstil (9. Ausg.)Halstead, Kate. Social Science Pupil Book. First published 1988. Department of Education Papua New Guinea, 1988.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.