Edited by Todd M. Johnson and Kenneth R. Ross.
Edinburgh: Edinburgh University Press, 2009.
For print version locations, see the UofT Library Catalogue.
Maps showing changes in Christianity during the 20th century.
Franklin H. Littell.
2nd revised and expanded edition. New York: Continuum, 2001.
The online version is available on the Internet Archive, a trusted source, but one for which it is necessary to create a free account and login.
Edited by Henry Chadwick and G.R. Evans.
New York: Facts on File, 1987.
The online version is available on the Internet Archive, a trusted source, but one for which it is necessary to create a free account and login.