March 13, 1980
June 01, 1980
January 01, 1980
June 26, 1981
March 01, 1981
June 26, 1976
January 23, 1981
March 15, 1980
February 16, 1980
May 17, 1980
May 31, 1980
April 12, 1980
November 07, 1980
November 07, 1980
August 02, 1980
November 27, 1980
April 01, 1981
April 01, 1981
June 12, 1981
May 01, 1980
October 31, 1980
October 01, 1979
October 06, 1979
January 01, 1981
October 01, 1980
February 01, 1980
August 01, 1981
February 06, 1981
July 01, 1981
January 01, 1981
June 01, 1981
September 01, 1979
December 01, 1980
September 01, 1980
December 01, 1981
January 01, 1980
November 15, 1980
April 01, 1980
January 01, 1981
January 01, 1981
November 01, 1979
July 01, 1981
August 01, 1980
September 01, 1981
March 22, 1980
April 01, 1980
July 12, 1980
January 15, 1981
December 14, 1981
March 21, 1981
April 18, 1981
May 23, 1981
March 03, 1979
April 07, 1979
May 12, 1979
June 09, 1979
June 21, 1980
November 01, 1979
May 01, 1980
July 11, 1979
March 01, 1981