Gaya APA

Voll, J, O. (1982). Islam continuity and change in the modern world / John Obert Voll (Cet.1). : Westview press.

Gaya MLA

Voll, John, Obert. "Islam continuity and change in the modern world / John Obert Voll". Cet.1 : Westview press, 1982. Referensi.