Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

Williams, Winfred Kambua, y Julia Mumu. Comprehensive Geography. First published, new syllabus. Nairobi, Kenya Kampala, Uganda Dar es Salaam, Tanzania: Longhorn Publishers, 2005.

Cita MLA (9a ed.)

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