APA (7th ed.) Citation

Ali, A., & Ali, I. (1993). The black Celts: An ancient African civilization in Ireland and Britain (2. ed.). Punite Books.

Chicago Style (17th ed.) Citation

Ali, Ahmed, and Ibrahim Ali. The Black Celts: An Ancient African Civilization in Ireland and Britain. 2. ed. Cardiff: Punite Books, 1993.

MLA (9th ed.) Citation

Ali, Ahmed, and Ibrahim Ali. The Black Celts: An Ancient African Civilization in Ireland and Britain. 2. ed. Punite Books, 1993.