Issue #12 Dec 05, 1972 Issue #13 Jan 02, 1973 Issue #14 Feb 01, 1973 Issue #15 Mar 01, 1973 Issue #16 Apr 03, 1973 Issue #17 May 01, 1973 Issue #18 Jun 05, 1973 Issue #19 Jul 03, 1973 Issue #20 Aug 02, 1973 Issue #21 Sep 04, 1973 Issue #22 Oct 02, 1973 Issue #23 Nov 01, 1973 Issue #24 Dec 04, 1973 Issue #25 Jan 02, 1974 Issue #26 Feb 05, 1974 Issue #27 Mar 05, 1974 Issue #28 Apr 02, 1974 Issue #29 May 07, 1974 Issue #30 Jun 04, 1974 Issue #31 Jul 02, 1974