APA (7th ed.) Citation

Burckhardt, T. (1976). An introduction to Sufi doctrine. Thorsons.

Chicago Style (17th ed.) Citation

Burckhardt, Titus. An Introduction to Sufi Doctrine. Wellingborough: Thorsons, 1976.

MLA (9th ed.) Citation

Burckhardt, Titus. An Introduction to Sufi Doctrine. Thorsons, 1976.

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