APA (7th ed.) Citation

Trimingham, J. S., & Voll, J. O. (1998). The Sufi orders in Islam. Oxford University Press.

Chicago Style (17th ed.) Citation

Trimingham, J. Spencer, and John O. Voll. The Sufi Orders in Islam. New York: Oxford University Press, 1998.

MLA (9th ed.) Citation

Trimingham, J. Spencer, and John O. Voll. The Sufi Orders in Islam. Oxford University Press, 1998.