Analysis of information sources in references of the Wikipedia article "اداره سیگنالهای استرالیا" in Persian language version.
Its existence was allegedly so secret that prime ministers were unaware of the agreement until 1973 – the same year the Commonwealth raided ASIO
{{citation}}: |last= has generic name (help))The files contain details of the recently avowed UKUSA Agreement – the top secret, post-war arrangement for sharing intelligence between the United States and the UK. Signed by representatives of the London Signals Intelligence Board and its American counterpart in March 1946, the UKUSA Agreement is without parallel in the Western intelligence world and formed the basis for co-operation between the two countries throughout the Cold War.
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