Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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