October 7, 1993: Support Nigerian Democracy! (letter)
March 25, 1993: Peace in Bosnia (letter)
March 4, 1993: An Open Letter to the United Nations, President Clinton, and the Congress (letter)
April 11, 1991: The Plight of Kosovo (letter)
April 13, 1989: Crackdown in Prague (letter)
February 18, 1988: Release Juris Bumeisters (letter)
June 11, 1987: Against Loans to Chile (letter)
January 15, 1987: Anniversary of an Uprising (letter)
June 12, 1986: Freedom & Peace, Corrected (letter)
May 29, 1986: 'Freedom & Peace' & Prison (letter)
February 13, 1986: Protests on Nicaragua (letter)
April 15, 1982: Solidarity Support (letter)
April 16, 1981: For 'Solidarity' (letter)
Kids With Zip: A Practical Resource for Promoting Active Children Ages 3-12 (2002)