APA (7th ed.) Citation

Crawford, P. (2014). The war of the three Gods: Romans, Persians, and the rise of Islam (First North American edition, first Skyhorse Publishing edition.). Skyhorse Publishing.

Chicago Style (17th ed.) Citation

Crawford, Peter. The War of the Three Gods: Romans, Persians, and the Rise of Islam. First North American edition, first Skyhorse Publishing edition. South Yorkshire, UK: Skyhorse Publishing, 2014.

MLA (9th ed.) Citation

Crawford, Peter. The War of the Three Gods: Romans, Persians, and the Rise of Islam. First North American edition, first Skyhorse Publishing edition. Skyhorse Publishing, 2014.

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