APA (7th ed.) Citation

Post, K. W. J. (1964). The new States of West Africa. Penguin Books.

Chicago Style (17th ed.) Citation

Post, Kenneth William John. The New States of West Africa. Baltimore: Penguin Books, 1964.

MLA (9th ed.) Citation

Post, Kenneth William John. The New States of West Africa. Penguin Books, 1964.