Issue #13 Jun 10, 1988 Issue #14 Aug 10, 1988 Issue #15 Dec 06, 1988 Issue #16 Feb 10, 1989 Issue #17 May 10, 1989 Issue #18 Jul 10, 1989 Issue #19 Nov 10, 1989 Issue #20 Jan 10, 1990 Issue #21 Apr 10, 1990 Issue #22 Jul 10, 1990 Issue #23 Oct 08, 1990 Issue #24 Jan 10, 1991 Issue #25 Mar 08, 1991 Issue #26 Jun 10, 1991 Issue #27 Aug 07, 1991 Issue #28 Nov 08, 1991 Issue #29 Mar 10, 1992 Issue #30 Jun 10, 1992 Issue #31 Aug 04, 1992 Issue #32 Oct 02, 1992