Issue #55 Apr 04, 1977 Issue #56 May 31, 1977 Issue #57 Jul 12, 1977 Issue #58 Aug 10, 1977 Issue #59 Sep 13, 1977 Issue #60 Oct 11, 1977 Issue #61 Nov 15, 1977 Issue #62 Dec 20, 1977 Issue #63 Jan 17, 1978 Issue #64 Feb 21, 1978 Issue #65 Mar 21, 1978 Issue #66 Apr 18, 1978 Issue #67 May 16, 1978 Issue #68 Jun 13, 1978 Issue #69 Jul 18, 1978 Issue #70 Aug 15, 1978 Issue #71 Sep 12, 1978 Issue #72 Oct 10, 1978 Issue #73 Nov 07, 1978 Issue #74 Dec 12, 1978