Jenkins, Dennis R.; Tony Landis and Jay Miller. American X-Vehicles: An Inventory—X-1 to X-50(PDF) (NASA Special Publication). Monographs in Aerospace History No. 31 Centennial of Flight. Washington, DC: NASA History Office. June 2003 [5 April 2010]. SP-2003-4531. (原始内容存档(PDF)于2020-03-29).引文使用过时参数coauthors (帮助)
web.archive.org
Jenkins, Dennis R.; Tony Landis and Jay Miller. American X-Vehicles: An Inventory—X-1 to X-50(PDF) (NASA Special Publication). Monographs in Aerospace History No. 31 Centennial of Flight. Washington, DC: NASA History Office. June 2003 [5 April 2010]. SP-2003-4531. (原始内容存档(PDF)于2020-03-29).引文使用过时参数coauthors (帮助)