Cita APA (7a ed.)
Bell, R. (1968). The origin of islam in its christian enviroment. Univ Press.
Cita Chicago Style (17a ed.)
Bell, Richard. The Origin of Islam in Its Christian Enviroment. Edinburgh: Univ Press, 1968.
Cita MLA (9a ed.)
Bell, Richard. The Origin of Islam in Its Christian Enviroment. Univ Press, 1968.
Precaución: Estas citas no son 100% exactas.