Issue #42 Aug 01, 1972 Issue #43 Oct 01, 1972 Issue #44 Dec 01, 1972 Issue #45 Feb 01, 1973 Issue #46 Apr 01, 1973 Issue #47 Jun 01, 1973 Issue #48 Jul 01, 1973 Issue #49 Aug 01, 1973 Issue #50 Oct 01, 1973 Issue #51 Oct 25, 1973 Issue #52 Dec 20, 1973 Issue #53 Feb 21, 1974 Issue #54 Apr 18, 1974 Issue #55 Jul 01, 1974 Issue #56 Aug 01, 1974 Issue #57 Aug 22, 1974 Issue #58 Dec 01, 1974 Issue #59 Dec 19, 1974 Issue #60 Issue #61 Apr 17, 1975