24 October 1977; Department of Finance; Circular;
17 September 1977; Department of Finance; Circular;
14 September 1977; Department of Finance; Circular;
1 August 1977; Department of Finance; Circular;
26 July 1977; Department of Finance; Circular;
29 June 1977; Department of Finance; Circular;
7 June 1977; Department of Finance; Circular;
19 May 1977; Department of Finance; Circular;
18 April 1977; Department of Finance; Circular;
1 March 1977; Department of Finance; Circular;