Packer, George Nichols (1893), Our Calendar: The Julian Calendar and Its Errors, how Corrected by the Gregorian, Corning, NY: [The author], s. 112, henta 15 Dec 2013, «Spy Wednesday, so called in allusion to the betrayal of Christ by Judas, or the day on which he made the bargain to deliver Him into the hands of His enemies for thirty pieces of silver.»
