1978-10 Oct 1978
1978-11 Nov 1978
1978-12 Dec 1978
1979-01 Jan 1979
1979-02 Feb 1979
Mar 1979 1979-03
Apr 1979 1979-04
May 1979 1979-05
Sep 1979 1979-09
Oct 1979 1979-10
Nov 1979 1979-11
Dec 1979 1979-12
Feb 1980 1980-02
May 1980 1980-05
Jun 1980 1980-06
Jul 1980 1980-07
Oct 1980 1980-10
Nov 1980 1980-11
Dec 1980 1980-12
Jan 1981 1981-01
Feb 1981 1981-02
Mar 1981 1981-03
Apr 1981 1981-04
May 1981 1981-05
Jun 1981 1981-06
Jul/Aug 1981 1981-07-08
Sep 1981 1981-09
Oct 1981 1981-10
Nov 1981 1981-11
Dec 1981 1981-12