produced and directed by Mark Anderson and Charles Bruce ; a coproduction by WGBH/Boston and Brook Associates in association with the BBC and Canal Plus
a Florentine Films production ; a film by Ken Burns ; produced by Ken Burns [and] Camilla Rockwell ; written by Geoffrey C. Ward ; produced in association with WETA-TV, Washington
a film by Ken Burns and Lynn Novick ; a Florentine Films production in association with WETA-TV, Washington ; produced by Ken Burns, Lynn Novick, Peter Miller ; written by Geoffrey C. Ward
Frontline producers, WGBH Boston ... [and others] ; written and produced by Marilyn Mellowes ; senior producer and director, William Cran ; WGBH Educational Foundation