APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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