Issue #1 Mar 20, 1975 Issue #2 Apr 25, 1975 Issue #3 Aug 07, 1975 Issue #4 Nov 04, 1975 Issue #5 Jan 28, 1976 Issue #6 Mar 26, 1976 Issue #7 Aug 12, 1976 Issue #8 Nov 25, 1976 Issue #9 Feb 24, 1977 Issue #10 May 31, 1977 Issue #11 Jul 27, 1977 Issue #12 Oct 20, 1977 Issue #13 Feb 22, 1978 Issue #14 Jun 08, 1978 Issue #15 Aug 03, 1978 Issue #16 Nov 07, 1978 Issue #17 Mar 16, 1979 Issue #18 Jul 24, 1979 Issue #19 Sep 18, 1979 Issue #20 Jan 10, 1980