American X-Vehicles: An Inventory- X-1 to X-50. NASA Monograph in Aerospace History, No. 31, 2003 (SP-2003-4531) - Paperback

by Dennis R. Jenkins (Author), Tony Landis (Author), Nasa History Division (Author)

First published in 2003 as a volume in the NASA "Monograph in Aerospace History" series. This study contains photographs and illustrations.