APA (7th ed.) Citation

Bell, R. The origin of Islam in its Christian environment. Frank Cass.

Chicago Style (17th ed.) Citation

Bell, Richard. The Origin of Islam in Its Christian Environment. London: Frank Cass.

MLA (9th ed.) Citation

Bell, Richard. The Origin of Islam in Its Christian Environment. Frank Cass.

Warning: These citations may not always be 100% accurate.