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 Issue #26 Sep 25, 1973 Issue #27 Nov 20, 1973 Issue #28 Jan 29, 1974 Issue #29 Apr 02, 1974 Issue #30 Jun 04, 1974 Issue #31 Jul 02, 1974