APA (7th ed.) Citation

Shah, I. (1990). The Sufis. Anchor Books.

Chicago Style (17th ed.) Citation

Shah, Idries. The Sufis. New York: Anchor Books, 1990.

MLA (9th ed.) Citation

Shah, Idries. The Sufis. Anchor Books, 1990.

Warning: These citations may not always be 100% accurate.