Issue #50 May 10, 1991 Issue #51 Jun 10, 1991 Issue #52 Jul 10, 1991 Issue #53 Aug 10, 1991 Issue #54 Sep 10, 1991 Issue #55 Oct 10, 1991 Issue #56 Nov 10, 1991 Issue #57 Dec 01, 1991 Issue #58 Jan 01, 1992 Issue #59 Apr 21, 1992 Issue #60 Mar 01, 1992 Issue #61 Apr 10, 1992 Issue #62 Apr 21, 1992 Issue #63 Jun 01, 1992 Issue #64 Jul 10, 1992 Issue #65 Aug 10, 1992 Issue #66 Sep 10, 1992 Issue #67 Oct 10, 1992 Issue #68 Nov 10, 1992 Issue #69 Dec 10, 1992