Gaya APA

Voll, J, O. (1994). Islam continuity and change in the modern world / John Obert Voll (2nd ed). : Syracuse University Press.

Gaya MLA

Voll, John, Obert. "Islam continuity and change in the modern world / John Obert Voll". 2nd ed : Syracuse University Press, 1994. Referensi.