APA Style

Gumbel, N. (1996). Questions of life : a practical introduction to the Christian faith / Nicky Gumbel. (New ed.). Colorado Springs, Co.: Cook Ministry Resources.

MLA Style

Gumbel, N.. "Questions of life : a practical introduction to the Christian faith / Nicky Gumbel.". New ed. Colorado Springs, Co.: Cook Ministry Resources, 1996. Text.