Jabarkan Statistik dari Konklaf 1958

Department of State secret dispatch, "John XXIII," issue date: 20 November 1958, declassified: 11 November, Paul L. Williams, The Vatican Exposed (Amherst, NY: Prometheus Books, 2003), pp. 90–92.

The Tablet, 1 November 1958

Department of State secret file, "Cardinal Siri," issue date: 10 April 1961, declassified: 28 February 1994, William, Op. Cit pp. 90–92.

Greeley, Andrew: The Making of the Popes: 1978 (Kansas City, MO: Andrews and McMeel, 1979)