Cita APA (7th ed.)

O'Brien, J. A. (1952). The faith of millions: The credentials of the Catholic religion. W. H. Allen.

Cita Chicago (17th ed.)

O'Brien, John Anthony. The Faith of Millions: The Credentials of the Catholic Religion. London: W. H. Allen, 1952.

Cita MLA (8th ed.)

O'Brien, John Anthony. The Faith of Millions: The Credentials of the Catholic Religion. W. H. Allen, 1952.