Zhong yang dian shi tai , Gu Gong bo wu yuan lian he she zhi ; zong gu wen, Sun Jiazheng ; chu pin ren, Zhao Huayong, Zheng Xinmiao ; zong bian dao, Zhou Bing, Xu Huan
a presentation of the National Park Service ; a film by John Grabowska ; producer, John Grabowska ; co-producer, Tim Lay ; directors, John Grabowska, Tim Lay ; writer, John De Lancey
Wall to Wall Television for BBC and PBS in association with ITEL ; written and presented by Henry Louis Gates, Jr. ; directors, Nicola Colton, Nick Godwin, Helena Appio
produced by Wall to Wall Television for BBC and PBS in association with ITEL ; written and presented by Henry Louis Gates, Jr. ; directors, Nicola Colton, Nick Godwin, Helena Appio