Gaya APA
Crone,Patricia, ., Hinds, M. (1986).
God's caliph : religion authority in the first centuries of islam .
Sydney:
Cambridge universty press.
Gaya MLA
Crone,Patricia, ., Hinds, Martin.
"God's caliph : religion authority in the first centuries of islam".
Sydney:
Cambridge universty press,
1986.
Text.