APA (7th ed.) Citation

Lings, M. (1993). What is sufism? The Islamic Texts Society Green Street.

Chicago Style (17th ed.) Citation

Lings, Martin. What Is Sufism? The Islamic Texts Society Green Street, 1993.

MLA (8th ed.) Citation

Lings, Martin. What Is Sufism? The Islamic Texts Society Green Street, 1993.

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