Cita APA (7a ed.)

Sheppard, J. A. (2005). Christendom at the crossroads: The medieval era. Westminster John Knox.

Cita Chicago Style (17a ed.)

Sheppard, James A. Christendom at the Crossroads: The Medieval Era. Louisville: Westminster John Knox, 2005.

Cita MLA (9a ed.)

Sheppard, James A. Christendom at the Crossroads: The Medieval Era. Westminster John Knox, 2005.