Issue #6 Aug 18, 1970 Issue #7 Oct 20, 1970 Issue #8 Dec 15, 1970 Issue #9 Feb 16, 1971 Issue #10 Apr 20, 1971 Issue #11 Jun 15, 1971 Issue #12 Aug 17, 1971 Issue #13 Oct 19, 1971 Issue #14 Dec 14, 1971 Issue #15 Feb 22, 1972 Issue #16 Apr 18, 1972 Issue #17 Jun 06, 1972 Issue #18 Aug 01, 1972 Issue #19 Oct 03, 1972 Issue #20 Nov 28, 1972 Issue #21 Feb 06, 1973 Issue #22 Apr 03, 1973 Issue #23 Jun 05, 1973 Issue #24 Jul 03, 1973 Issue #25 Jul 31, 1973