APA (7th ed.) Citation

Phillips, M. A. (1989). Unto the hills: The story of a trek in northern Nigeria. Sudan United Mission.

Chicago Style (17th ed.) Citation

Phillips, Michael A. Unto the Hills: The Story of a Trek in Northern Nigeria. London: Sudan United Mission, 1989.

MLA (9th ed.) Citation

Phillips, Michael A. Unto the Hills: The Story of a Trek in Northern Nigeria. Sudan United Mission, 1989.