APA (7e ed.) Bronvermelding

Boston, J. S. (1968). The Igala kingdom. Nigerian Institute of Social and Economic Research [by] Oxford University Press.

Chicago (17e ed.) Bronvermelding

Boston, John S. The Igala Kingdom. Ibadan: Nigerian Institute of Social and Economic Research [by] Oxford University Press, 1968.

MLA (9e ed.) Bronvermelding

Boston, John S. The Igala Kingdom. Nigerian Institute of Social and Economic Research [by] Oxford University Press, 1968.