Issue 1 November 1968  | Issue 16 October 1970  | Issue 17 November 1970  | Issue 19 January 1971  | Issue 22 April 1971  | Issue 23 May 1971  |
Issue 25 September 1971  | Issue 26-27 November/December 1971  | Issue 32 January/February 1973  | Issue 33 March/April 1973  | Issue 34-35 May/June 1973  | Issue 36 August 1973  |