Cita APA (7a ed.)

(1981). What is Sufism? (2nd ed.). Unwin Paperbacks.

Cita Chicago Style (17a ed.)

What Is Sufism? 2nd ed. London [etc.]: Unwin Paperbacks, 1981.

Cita MLA (9a ed.)

What Is Sufism? 2nd ed. Unwin Paperbacks, 1981.