Issue #29 Dec 31, 1971 Issue #30 Feb 29, 1972 Issue #31 Apr 01, 1972 Issue #32 Jun 30, 1972 Issue #33 Aug 31, 1972 Issue #34 Oct 31, 1972 Issue #35 Dec 31, 1972 Issue #36 Jan 01, 1973 Issue #37 Mar 31, 1973 Issue #38 May 31, 1973 Issue #39 Jun 30, 1973 Issue #40 Jul 01, 1973 Issue #41 Sep 30, 1973 Issue #42 Oct 01, 1973 Issue #43 Dec 31, 1973 Issue #44 Jan 31, 1974 Issue #45 Issue #46 Issue #47 Jun 11, 1974 Issue #48 Aug 13, 1974