Issue #168 Jun 19, 1975 Issue #169 Jul 24, 1975 Issue #170 Aug 26, 1975 Issue #171 Oct 23, 1975 Issue #172 Dec 30, 1975 Issue #173 Feb 24, 1976 Issue #174 Apr 27, 1976 Issue #175 Jun 24, 1976 Issue #176 Aug 19, 1976 Issue #177 Oct 26, 1976 Issue #178 Dec 28, 1976 Issue #179 Feb 22, 1977 Issue #180 Apr 19, 1977 Issue #181 Jun 21, 1977 Issue #182 Aug 31, 1977 Issue #183 Oct 25, 1977 Issue #184 Dec 27, 1977 Issue #185 Feb 28, 1978 Issue #186 Apr 25, 1978 Issue #187 Jun 06, 1978