Steenson and Varming's report: 'Sydney Opera House/description of mechanical services installations/and/report of work planning programme', January 1965 Date: January 1965
Summary of developments, 19 November 1957 - 1 February, 1958 Date: 19 November 1957 - 1 February, 1958
Summary of developments, 19 November 1957 - 1 February, 1958 Date: 19 November 1957 - 1 February, 1958
'Sydney Opera House', a confidential paper by Trust Secretary, Thompson, September 1962 Date: September 1962