Cita APA (7a ed.)

O'Callaghan, P., & Gassman, G. (1997). Fides Christi. The justification debate. Four Courts Press.

Cita Chicago Style (17a ed.)

O'Callaghan, Paul, y Günther Gassman. Fides Christi. The Justification Debate. Dublín: Four Courts Press, 1997.

Cita MLA (9a ed.)

O'Callaghan, Paul, y Günther Gassman. Fides Christi. The Justification Debate. Four Courts Press, 1997.