MLA

Forrester, Duncan B, and Alister E McGrath. The Blackwell Encyclopedia of Modern Christian Thought. Oxford: Blackwell, 1993.

APA

Forrester, D. B, & McGrath, A. E. (1993). The Blackwell encyclopedia of modern christian thought. Oxford: Blackwell.

Chicago

Forrester, Duncan B. ed., and Alister E McGrath ed. The Blackwell Encyclopedia of Modern Christian Thought. Oxford: Blackwell, 1993.