A production of the Educational Film Center and Christenson Associates ; writers, Louis Barbash, Patrick Prentice ; producer/director, Ira H. Klugerman
from WNET New York, Annenberg Media ; executive producer, Perry Miller Adato ; series producers, Tony Cash, Andrew Snell ; a production of WNET/Thirteen in association with TVS, ORF, and Television Espanola, S.A. ; Educational Broadcasting Corporation
a production by Gruppe 5 Filmproduktion, Cologne commissioned by ZDF in cooperation with ARTE, ZDF-Enterprises, ORF, SBS ; script, Christian Feyerabend, Judith Voelker ; director, Christian Twente ; producer, Andrew McDonald
a Frontline co-production with the Palfreman Film Group ; WGBH Educational Foundation ; written by Jon Palfreman and T.R. Reid ; produced and directed by Jon Palfreman
produced by Maryland Public Television and Central Independent Television, in association with NHK Japan and the British Museum ; producer & director, Peter Spry-Leverton ; written by Michael Wood
a Nova production by Bsquared Media for WGBH Boston in association with Arte France ; written by David Murdock & Bonnie Brennan ; produced and directed by Bonnie Brennan