Cita APA (7a ed.)

Roberston, J. M. (1902). A short history of Christianity. Watts & Co..

Cita Chicago Style (17a ed.)

Roberston, John M. A Short History of Christianity. London: Watts & Co., 1902.

Cita MLA (9a ed.)

Roberston, John M. A Short History of Christianity. Watts & Co., 1902.