Cita APA (7a ed.)

Walker, P. E. The Isma'ilis: Paul E. Walker. The Cambridge Companion to Arabic philosophy.(2006).

Cita Chicago Style (17a ed.)

Walker, Paul E. "The Isma'ilis: Paul E. Walker." The Cambridge Companion to Arabic Philosophy.(2006) .

Cita MLA (8a ed.)

Walker, Paul E. "The Isma'ilis: Paul E. Walker." The Cambridge Companion to Arabic Philosophy.(2006), .