a production of Public Affairs Television, Inc. ; a presentation of Thirteen/WNET New York ; directed by Ken Diego ; producers, Gail Ablow ... [and others] ; written by Bill Moyers, Michael Winship
esta fué una producción de TV UNAM ; realizacíon, Irma Avila Pietrasanta ; investigacíon y guión, Pilar López Martinez ; produccíoin, Joaquin Palma Ciénega