APA Style

Crone, P., Hinds, M. (2003). God's Caliph: Religious authority in the first centuries of Islam (1st Paperback). Melbourne: Cambridge University Press.

MLA Style

Crone, Patricia., Hinds, Martin. "God's Caliph: Religious authority in the first centuries of Islam". 1st Paperback Melbourne: Cambridge University Press, 2003. Text.