Further Reading

John Bryden, Best-Kept Secret: Canadian Secret Intelligence in the Second World War (Toronto: Lester Publishing, 1993)

Kurt Jensen, Cautious Beginnings: Canadian Foreign Intelligence, 1939-51 (Vancouver: UBC Press, 2008)

Diana Pepall, Canada’s Bletchley Park: The Examination Unit in Ottawa’s Sandy Hill, 1941-1945 (Ottawa: The Historical Society of Ottawa, 2023 Edition)

Bill Robinson, “History of CBNRC,” Lux ex Umbra: Monitoring Canadian Signals Intelligence (SIGINT) Activities Past and Present Blog: https://luxexumbra.blogspot.com/2019/08/history-of-cbnrc.html.

Maria A. Robson, “The third eye: Canada’s development of autonomous signals intelligence to contribute to Five Eyes intelligence sharing,” Intelligence and National Security 35:7 (2020), 954-969.

Philip Rosen, “The Communications Security Establishment - Canada's Most Secret Intelligence Agency,” Government of Canada Publications BP-343E (September 1993)

Martin Rudner, “The Historical Evolution of Canada's Foreign Intelligence Capability: Cold War SIGINT Strategy and its Legacy,” Journal of Intelligence History 6:1 (2006), 67-83.

Wesley Wark, “Cryptographic Innocence: The Origins of Signals Intelligence in Canada in the Second World War,” Journal of Contemporary History 22:4 (October 1987), 639-665.

Wesley Wark, “The Road to CANUSA: how Canadian signals intelligence won its independence and helped create the Five Eyes,” Intelligence and National Security 35:1 (2020), 20-34.