Films for the Humanities & Sciences ; a production of Public Affairs Television, Inc. ; a presentation of Thirteen/WNET New York ; producers, Gail Ablow, William Brangham, Peter Meryash, Betsy Rate, Candace White ; directed by Ken Diego ; written by Bill Moyers, Michael Winship
producers, Gail Ablow ... [and others] ; directed by, Ken Diego ; a production of Public Affairs Television, Inc. ; a presentation of Thirteen/WNET New York