APA (7e ed.) Bronvermelding

Sykes, S. (1971). An introduction to christian theology today. John Knox Press.

Chicago (17e ed.) Bronvermelding

Sykes, Stephen. An Introduction to Christian Theology Today. Atlanta: John Knox Press, 1971.

MLA (9e ed.) Bronvermelding

Sykes, Stephen. An Introduction to Christian Theology Today. John Knox Press, 1971.