Omni Film Productions ; produced with the participation of Telefilm Canada in association with British Columbia Films ... [and others] ; produced by Christian Bruyére, Ian Herring
produced by Actuality Productions, Inc.for History Television Network Productions; created and produced by Bruce Nash ; executive producer, Don Cambou ; written by Greg Goldman
produced by Adrian Malone ; produced in cooperation with the Center for the Book, Library of Congress ; a presentation of Discovery Networks in association with Cronkite/Ward