Gugu, A., & Ngowi, M. A. (2015). Foundations of geography (First published, syllabus 2006.). Mture Educational Publishers.
Citazione stile Chigago Style (17a edizione)Gugu, Abdul, e M. A. Ngowi. Foundations of Geography. First published, syllabus 2006. Dar es Salaam: Mture Educational Publishers, 2015.
Citatione MLA (9a ed.)Gugu, Abdul, e M. A. Ngowi. Foundations of Geography. First published, syllabus 2006. Mture Educational Publishers, 2015.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.