APA Style
Grenz, S, J., Olson, R, E. (1993).
20th-Century Theology: God and the World in a Transitional Age .
Lisle, Illinois:
IVP Academic.
MLA Style
Grenz, Stanley, J.., Olson, Roger, E..
"20th-Century Theology: God and the World in a Transitional Age".
Lisle, Illinois:
IVP Academic,
1993.
Text.