Issue #159 Mar 25, 1971 Issue #160 May 13, 1971 Issue #161 Jun 24, 1971 Issue #162 Aug 05, 1971 Issue #163 Sep 28, 1971 Issue #164 Oct 26, 1971 Issue #165 Nov 23, 1971 Issue #166 Dec 28, 1971 Issue #167 Jan 20, 1972 Issue #168 Feb 24, 1972 Issue #169 Mar 23, 1972 Issue #170 Apr 25, 1972 Issue #171 May 23, 1972 Issue #172 Jun 27, 1972 Issue #173 Jul 25, 1972 Issue #174 Aug 29, 1972 Issue #175 Oct 24, 1972 Issue #176 Dec 19, 1972 Issue #177 Feb 22, 1973 Issue #178 Apr 19, 1973