Cita APA (7a ed.)

O'Kavanagh, J., & Gibbons, J. (1912). Cardinal Mercier's Retreat to his Priests. Ch. Beyaert.

Cita Chicago Style (17a ed.)

O'Kavanagh, J.M, y James Gibbons. Cardinal Mercier's Retreat to His Priests. Bruges: Ch. Beyaert, 1912.

Cita MLA (9a ed.)

O'Kavanagh, J.M, y James Gibbons. Cardinal Mercier's Retreat to His Priests. Ch. Beyaert, 1912.