Cita APA (7a ed.)

Schuon, F., & Matheson, D. M. (1981). Understanding Islam (1st published, reprinted, reissued.). Unwin Paperbacks.

Cita Chicago Style (17a ed.)

Schuon, Frithjof, y D. M. Matheson. Understanding Islam. 1st published, reprinted, reissued. London [etc.]: Unwin Paperbacks, 1981.

Cita MLA (9a ed.)

Schuon, Frithjof, y D. M. Matheson. Understanding Islam. 1st published, reprinted, reissued. Unwin Paperbacks, 1981.