Issue #11 May 16, 1972 Issue #12 Jul 11, 1972 Issue #13 Sep 05, 1972 Issue #14 Oct 31, 1972 Issue #15 Jan 02, 1973 Issue #16 Mar 06, 1973 Issue #17 May 08, 1973 Issue #18 Jul 03, 1973 Issue #19 Aug 28, 1973 Issue #20 Oct 23, 1973 Issue #21 Dec 18, 1973 Issue #22 Mar 05, 1974 Issue #23 Apr 30, 1974 Issue #24 Jul 02, 1974 Issue #25 Sep 03, 1974 Issue #26 Nov 05, 1974 Issue #27 Jan 07, 1975 Issue #28 Mar 04, 1975 Issue #29 May 06, 1975 Issue #30 Jul 01, 1975