APA

Wills A. J., . (1967). An introduction to the history of Central Africa. London: Oxford University press.

Chicago

Wills A J, . 1967. An introduction to the history of Central Africa. London: Oxford University press.

Harvard

Wills A. J., . (1967). An introduction to the history of Central Africa. London: Oxford University press.

MLA

Wills A J, . An introduction to the history of Central Africa. London: Oxford University press. 1967.