Issue #1 Oct 21, 1972 Issue #2 Feb 28, 1973 Issue #3 Jun 15, 1973 Issue #4 Sep 28, 1973 Issue #5 Dec 18, 1973 Issue #6 Mar 12, 1974 Issue #7 May 17, 1974 Issue #8 Jul 15, 1974 Issue #9 Sep 17, 1974 Issue #10 Oct 11, 1974 Issue #11 Nov 07, 1974 Issue #12 Dec 12, 1974 Issue #13 Dec 19, 1974 Issue #14 Jan 23, 1975 Issue #15 Mar 20, 1975 Issue #16 Apr 25, 1975 Issue #17 Jun 30, 1975 Issue #18 Aug 11, 1975 Issue #19 Oct 13, 1975 Issue #20 Dec 10, 1975