Cita APA (7a ed.)

Sullivan, W. L. (1911). Letters to His Holiness: Pope Pius X (2nd. ed.). The Open Court publishing company ; Kegan Paul, Trench, Trübner & Co.

Cita Chicago Style (17a ed.)

Sullivan, William L. Letters to His Holiness: Pope Pius X. 2nd. ed. Chicago : London: The Open Court publishing company ; Kegan Paul, Trench, Trübner & Co, 1911.

Cita MLA (9a ed.)

Sullivan, William L. Letters to His Holiness: Pope Pius X. 2nd. ed. The Open Court publishing company ; Kegan Paul, Trench, Trübner & Co, 1911.