Cita APA (7a ed.)

O'Callaghan, D. J., Obermann, H. A., & O'Hanlon, D. J. (1961). Christianity divided: Protestant and Roman Catholic Theological Issues. Sheed & Ward.

Cita Chicago Style (17a ed.)

O'Callaghan, Daniel J., Heiko A. Obermann, y Daniel J. O'Hanlon. Christianity Divided: Protestant and Roman Catholic Theological Issues. Nueva York ; London: Sheed & Ward, 1961.

Cita MLA (9a ed.)

O'Callaghan, Daniel J., et al. Christianity Divided: Protestant and Roman Catholic Theological Issues. Sheed & Ward, 1961.