Issue #1 Jun 06, 1975 Issue #2 Jul 09, 1975 Issue #3 Aug 07, 1975 Issue #4 Jan 28, 1976 Issue #5 Feb 27, 1976 Issue #6 Jul 30, 1976 Issue #7 Dec 23, 1976 Issue #8 May 31, 1977 Issue #9 Jan 31, 1978 Issue #10 Jun 29, 1978 Issue #11 Dec 21, 1978 Issue #12 Jun 30, 1979 Issue #13 Jul 28, 1979 Issue #14 Mar 29, 1980 Issue #15 Apr 25, 1980 Issue #16 Oct 29, 1980 Issue #17 Mar 28, 1981 Issue #18 Apr 28, 1981 Issue #19 Jan 28, 1982 Issue #20 Feb 26, 1982