produced by John Marshall and Sue Marshall-Cabezas ; directed and edited by Adrienne Miesmer and John Marshall ; a co-production of Documentary Educational Resources and Public Broadcasting Associates
produced by John Marshall and Sue Marshall-Cabezas ; directed and edited by Adrienne Miesmer and John Marshall ; a co-production of Documentary Educational Resources and Public Broadcasting Associates
produced by the National Geographic Society and WQED, Pittsburgh ; executive producers, Dennis B. Kane, Thomas Skinner ; produced and photographed by Stanley Breeden, Belinda Wright ; written by Stanley Breeden