Issue 1 January 1974	Issue 3 March 1974	Issue 4 April 1974	Issue 5 May 1974	Issue 6 June 1974	Issue 7 July 1974
Issue 12 December 1974	Issue 1 January 1975	Issue 2 February 1975	Issue 3 March 1975	Issue 4 April 1975	Issue 5 May 1975
Issue 6 June 1975	Issue 7 July 1975	Issue 8 August 1975	Issue 9 September 1975	Issue 10 October 1975	Issue 11 November 1975
Issue 12 December 1975	Issue 2 February 1982	Issue 8 August 1982	Issue 4 October/December 1986