Correspondence and reports and fallout characteristics and rate of decay
Department of National Defence
Atomic (Nuclear) Warfare - Effects of Radiation from an Atomic Bomb (Radioactive Fallout, Radiation Exposure), RG24-F-1, acc. 1983-84-167, vol. 7508, file DRBS-1600-3 vol. 2, LAC.
Department of National Defence, “Fallout decay,” Canada Declassified, accessed June 16, 2019, https://declassified.library.utoronto.ca/items/show/4519.