APA-Zitierstil (7. Ausg.)

Williams, W. K., & Mumu, J. (2005). Comprehensive geography (First published, new syllabus.). Longhorn Publishers.

Chicago-Zitierstil (17. Ausg.)

Williams, Winfred Kambua, und Julia Mumu. Comprehensive Geography. First published, new syllabus. Nairobi, Kenya Kampala, Uganda: Longhorn Publishers, 2005.

MLA-Zitierstil (9. Ausg.)

Williams, Winfred Kambua, und Julia Mumu. Comprehensive Geography. First published, new syllabus. Longhorn Publishers, 2005.