Issue 17 August 1968	Issue 19 October 1968	Issue 21 April 1969	Issue 22 May 1969	Vol 4 No 1 2 March 1970	Vol 4 No 2 1970
Vol 4 No 4 6 April 1970	Vol 4 No 5 1970	Vol 4 No 6 1970	Vol 4 No 8 1970	Vol 4 No 10 6 July 1970	Vol 4 No 11 1970
Vol 4 No 12 12 August 1970	Vol 4 No 14 1970	Vol 5 No 1 22 November 1970	Vol 6 No 1 16 May 1971	Vol 6 No 2 6 June 1971	Vol 6 No 4 4 July 1971
Vol 6 No 5 18 July 1971	Vol 6 No 6 1 August 1971	7 November 1971	5 December 1971	16 January 1972	30 January 1972
20 February 1972	2 April 1972	July 1972	May 1973	October 1973	September 1977
December 1977	February 1978	March 1978