Issue #15 Jan 10, 1990 Issue #16 Mar 09, 1990 Issue #17 May 10, 1990 Issue #18 Jul 10, 1990 Issue #19 Sep 10, 1990 Issue #20 Nov 09, 1990 Issue #21 Mar 08, 1991 Issue #22 May 10, 1991 Issue #23 Nov 08, 1991 Issue #24 Feb 10, 1992 Issue #25 Jun 10, 1992 Issue #26 Oct 02, 1992 Issue #27 Jan 07, 1993 Issue #28 Jun 04, 1993 Issue #29 Oct 04, 1993 Issue #30 Jan 11, 1994 Issue #31 May 02, 1994 Issue #32 Sep 02, 1994 Issue #33 Jan 11, 1995 Issue #34 May 11, 1995