APA (7th ed.) Citation

Johnson, S., & Johnson, O. (1970). The history of the Yorubas: From the earliest times to the beginning of the British Protectorate. Negro University Press.

Chicago Style (17th ed.) Citation

Johnson, Samuel, and O. Johnson. The History of the Yorubas: From the Earliest Times to the Beginning of the British Protectorate. Westport, Conn.: Negro University Press, 1970.

MLA (9th ed.) Citation

Johnson, Samuel, and O. Johnson. The History of the Yorubas: From the Earliest Times to the Beginning of the British Protectorate. Negro University Press, 1970.