APA Style

MacSwain, R, &, W, M. (2011). The Cambridge Companion to C. S. Lewis (Cambridge Companions to Religion) . New York, New York: Cambridge University Press.

MLA Style

MacSwain, Robert, &, Ward,, Michael. "The Cambridge Companion to C. S. Lewis (Cambridge Companions to Religion)". New York, New York: Cambridge University Press, 2011. Text.