APA Style

Bell, Richard. (1968). The Origin of Islam in This Christian Environment . London: Frank Cass & Coltd.

Chicago Style

Bell, Richard. The Origin of Islam in This Christian Environment. London: Frank Cass & Coltd, 1968. .

MLA Style

Bell, Richard. The Origin of Islam in This Christian Environment. London: Frank Cass & Coltd, 1968. .

Turabian Style

Bell, Richard. The Origin of Islam in This Christian Environment. London: Frank Cass & Coltd, 1968. .