APA (7th ed.) Citation

Wills, A. J. (1967). An introduction to the history of central Africa (2nd ed.). Oxford University Press.

Chicago Style (17th ed.) Citation

Wills, Alfred John. An Introduction to the History of Central Africa. 2nd ed. London: Oxford University Press, 1967.

MLA (9th ed.) Citation

Wills, Alfred John. An Introduction to the History of Central Africa. 2nd ed. Oxford University Press, 1967.