Cita APA (7a ed.)

Smart, J. D. (1972). Doorway to a new age: A study of Paul's Letter to the Romans. The Westminster Press.

Cita Chicago Style (17a ed.)

Smart, James D. Doorway to a New Age: A Study of Paul's Letter to the Romans. Philadelphia: The Westminster Press, 1972.

Cita MLA (9a ed.)

Smart, James D. Doorway to a New Age: A Study of Paul's Letter to the Romans. The Westminster Press, 1972.