Cita APA (7a ed.)

Rope, H. E. (1941). Benedict XV: : the Pope of peace. John Gifford.

Cita Chicago Style (17a ed.)

Rope, Henry E.G. Benedict XV: : The Pope of Peace. London: John Gifford, 1941.

Cita MLA (9a ed.)

Rope, Henry E.G. Benedict XV: : The Pope of Peace. John Gifford, 1941.