Cita APA (7a ed.)

Roberts, J. D. (1991). A philosophical introduction to theology. SCM Press.

Cita Chicago Style (17a ed.)

Roberts, J. Deotis. A Philosophical Introduction to Theology. London: SCM Press, 1991.

Cita MLA (9a ed.)

Roberts, J. Deotis. A Philosophical Introduction to Theology. SCM Press, 1991.