Akiec, N. M. (2000). Geography and environmental studies for the Sudan school certificate. Comboni College.
Chicago-Zitierstil (17. Ausg.)Akiec, Nyibong Mayik. Geography and Environmental Studies for the Sudan School Certificate. Khartoum: Comboni College, 2000.
MLA-Zitierstil (9. Ausg.)Akiec, Nyibong Mayik. Geography and Environmental Studies for the Sudan School Certificate. Comboni College, 2000.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.