APA (7th ed.) Citation

O'Brien, J. M. (1992). Alexander the Great: The invisible enemy; a biography. Routledge.

Chicago Style (17th ed.) Citation

O'Brien, John Maxwell. Alexander the Great: The Invisible Enemy; a Biography. London New York: Routledge, 1992.

MLA (8th ed.) Citation

O'Brien, John Maxwell. Alexander the Great: The Invisible Enemy; a Biography. Routledge, 1992.