APA (7th ed.) Citation

YaQadamawi Hayla Selase yaselemat derejet, Gardiner, R. K. A., Anstee, M. J., & Patterson, C. L. (1970). Africa and the world. Oxford University Press.

Chicago Style (17th ed.) Citation

YaQadamawi Hayla Selase yaselemat derejet, Robert K. A. Gardiner, Margaret Joan Anstee, and C. L. Patterson. Africa and the World. Addis Ababa: Oxford University Press, 1970.

MLA (8th ed.) Citation

YaQadamawi Hayla Selase yaselemat derejet, et al. Africa and the World. Oxford University Press, 1970.