Cita APA (7th ed.)
Symington, N. (2001). The spirit of sanity. Karnac.
Cita Chicago (17th ed.)
Symington, Neville. The Spirit of Sanity. London: Karnac, 2001.
Cita MLA (9th ed.)
Symington, Neville. The Spirit of Sanity. Karnac, 2001.
Atenció: Aquestes cites poden no estar 100% correctes.