Issue #1 Aug 01, 1973 Issue #2 Nov 01, 1973 Issue #3 Feb 01, 1974 Issue #4 May 01, 1974 Issue #5 Aug 01, 1974 Issue #6 Aug 15, 1974 Issue #7 Nov 21, 1974 Issue #8 May 01, 1975 Issue #9 Aug 01, 1975 Issue #10 Aug 14, 1975 Issue #11 Feb 01, 1976 Issue #12 Issue #13 May 01, 1976 Issue #14 Issue #15 Jul 22, 1976 Issue #16 Sep 23, 1976 Issue #17 Jan 31, 1977 Issue #18 Mar 01, 1977 Issue #19 May 01, 1977 Issue #20 May 19, 1977