↑ Estimates of the crowd size range from "thirty to forty thousand" by Avelino de Almeida, writing for the Portuguese newspaper O Século (De Marchi, John (1952). The True Story of Fatima. St. Paul, Minnesota: Catechetical Guild Entertainment Society. ), to one hundred thousand, estimated by Dr. Joseph Garrett, Professor of Natural Sciences at Coimbra University (De Marchi 1952, tr. 177), both of whom were present that day (De Marchi 1952, tr. 185–187). The accepted figure is 70.000.
↑ Journal of Meteorology, Vol. 14, no. 142, October 1988, and virtually all publications which deal with the event
↑ Gérard de Sède, Fatima, enquête sur une imposture, Éditions Alain Moreau, 1977, 294 p
↑ Fatima, un OVNI pas comme les autres ?, éditions Osmondes, 17 octobre 2002, 293 p.
Michael Cuneo: "The Vengeful Virgin: Studies in Contemporary Catholic Apocalypticism" in Tim Robbins and Susan Palmer (eds) Millennium, Messiahs and Mayhem: New York: Routledge: 1997: ISBN 0-415-91649-6
Joe Nickell: Looking for a Miracle: Weeping Icons, Relics, Stigmata, Visions & Healing Cures: Prometheus Books: 1998: ISBN 1-57392-680-9
Nick Perry and Loreto Echevarria: Under the Heel of Mary: New York: Routledge: 1988: ISBN 0-415-01296-1
Sandra Zimdars-Swartz: Encountering Mary: Princeton: Princeton University Press: 1991: ISBN 0-691-07371-6
