Issue #1 Jan 10, 1976 Issue #2 Mar 10, 1976 Issue #3 May 10, 1976 Issue #4 Jul 10, 1976 Issue #5 Sep 10, 1976 Issue #6 Nov 10, 1976 Issue #7 Jan 10, 1977 Issue #8 Feb 10, 1977 Issue #9 Apr 09, 1977 Issue #10 Jun 10, 1977 Issue #11 Aug 10, 1977 Issue #12 Oct 08, 1977 Issue #13 Dec 10, 1977 Issue #14 Mar 10, 1978 Issue #15 Jun 10, 1978 Issue #16 Aug 10, 1978 Issue #17 Nov 10, 1978 Issue #18 Mar 10, 1979 Issue #19 Jun 09, 1979 Issue #20 Sep 10, 1979