APA (7th ed.) Citation

Spellman, W. M. (2001). Monarchies 1000 - 2000 (1. publ.). Reaktion Books.

Chicago Style (17th ed.) Citation

Spellman, William M. Monarchies 1000 - 2000. 1. publ. London: Reaktion Books, 2001.

MLA (9th ed.) Citation

Spellman, William M. Monarchies 1000 - 2000. 1. publ. Reaktion Books, 2001.

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