Rolfe, F. W. (1969). Hadrian the Seventh: Fr. Rolfe (Frederick Baron Corvo). Penguin.
Cita Chicago (17th ed.)Rolfe, Frederick W. Hadrian the Seventh: Fr. Rolfe (Frederick Baron Corvo). Harmondsworth: Penguin, 1969.
Cita MLA (8th ed.)Rolfe, Frederick W. Hadrian the Seventh: Fr. Rolfe (Frederick Baron Corvo). Penguin, 1969.
Atenció: Aquestes cites poden no estar 100% correctes.