APA (7th ed.) Citation

ARNOLD, S. T. W. (1965). The Caliphate. O.U.P.

Chicago Style (17th ed.) Citation

ARNOLD, Sir Thomas W. The Caliphate. Karachi: O.U.P, 1965.

MLA (9th ed.) Citation

ARNOLD, Sir Thomas W. The Caliphate. O.U.P, 1965.