Jensen, K. F. (2008). Cautious beginnings: Canadian foreign intelligence, 1939-51. UBC Press.
Lua i Stíl Chicago (17ú heag.)Jensen, Kurt F. Cautious Beginnings: Canadian Foreign Intelligence, 1939-51. Vancouver: UBC Press, 2008.
Lua MLA (9ú heag.)Jensen, Kurt F. Cautious Beginnings: Canadian Foreign Intelligence, 1939-51. UBC Press, 2008.
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