Issue #13 Jan 19, 1971 Issue #14 Apr 13, 1971 Issue #15 Jul 06, 1971 Issue #16 Oct 05, 1971 Issue #17 Jan 04, 1972 Issue #18 Apr 04, 1972 Issue #19 Jun 06, 1972 Issue #20 Jul 04, 1972 Issue #21 Aug 01, 1972 Issue #22 Oct 03, 1972 Issue #23 Nov 28, 1972 Issue #24 Feb 06, 1973 Issue #25 Apr 03, 1973 Issue #26 Jun 05, 1973 Issue #27 Jul 03, 1973 Issue #28 Jul 31, 1973 Issue #29 Sep 25, 1973 Issue #30 Nov 20, 1973 Issue #31 Jan 29, 1974 Issue #32 Apr 02, 1974