Issue #1 Aug 29, 1972 Issue #2 Oct 19, 1972 Issue #3 Dec 12, 1972 Issue #4 Jan 16, 1973 Issue #5 Feb 13, 1973 Issue #6 Mar 13, 1973 Issue #7 Apr 10, 1973 Issue #8 May 10, 1973 Issue #9 Jun 12, 1973 Issue #10 Jul 10, 1973 Issue #11 Aug 09, 1973 Issue #12 Sep 11, 1973 Issue #13 Oct 09, 1973 Issue #14 Nov 13, 1973 Issue #15 Dec 11, 1973 Issue #16 Jan 10, 1974 Issue #17 Feb 12, 1974 Issue #18 Mar 12, 1974 Issue #19 Apr 09, 1974 Issue #20 May 14, 1974