APA (7th ed.) Citation

Burckhardt & Matheson. (1999). An introduction to sufi doctrine. Carvan Press.

Chicago Style (17th ed.) Citation

Burckhardt and Matheson. An Introduction to Sufi Doctrine. Lahore, Pakistan: Carvan Press, 1999.

MLA (8th ed.) Citation

Burckhardt and Matheson. An Introduction to Sufi Doctrine. Carvan Press, 1999.

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