Style de citation APA (7e éd.)

Collins, S. D. (2020). Ubuntu: George M. Houser and the Struggle for Peace and Freedom on Two Continents. Ohio University Press.

Style de citation Chicago (17e éd.)

Collins, Sheila D. Ubuntu: George M. Houser and the Struggle for Peace and Freedom on Two Continents. Athens: Ohio University Press, 2020.

Style de citation MLA (8e éd.)

Collins, Sheila D. Ubuntu: George M. Houser and the Struggle for Peace and Freedom on Two Continents. Ohio University Press, 2020.