Issue #42 Feb 26, 1980 Issue #43 Mar 25, 1980 Issue #44 Apr 22, 1980 Issue #45 May 27, 1980 Issue #46 Jun 24, 1980 Issue #47 Jul 22, 1980 Issue #48 Aug 26, 1980 Issue #49 Sep 23, 1980 Issue #50 Oct 28, 1980 Issue #51 Nov 25, 1980 Issue #52 Dec 23, 1980 Issue #53 Jan 20, 1981 Issue #54 Feb 24, 1981 Issue #55 Mar 24, 1981 Issue #56 Apr 21, 1981 Issue #57 May 19, 1981 Issue #58 Jun 16, 1981 Issue #59 Jul 21, 1981 Issue #60 Aug 18, 1981 Issue #61 Sep 15, 1981