APA (7th ed.) Citation

Sykes, M. (1973). The Caliphs' last heritage. Arno Press.

Chicago Style (17th ed.) Citation

Sykes, Mark. The Caliphs' Last Heritage. New York: Arno Press, 1973.

MLA (9th ed.) Citation

Sykes, Mark. The Caliphs' Last Heritage. Arno Press, 1973.

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