National Security Archive (U.S.), Chadwyck-Healey, Inc, & Richelson, J. (1991). U.S. military uses of space, 1945-1991: Guide and index. National Security Archive ; Chadwyck-Healey.
Chicago-referens (17:e uppl.)National Security Archive (U.S.), Inc Chadwyck-Healey, och Jeffrey Richelson. U.S. Military Uses of Space, 1945-1991: Guide and Index. [Washington, D.C.] : Alexandria, Va.: National Security Archive ; Chadwyck-Healey, 1991.
MLA-referens (8:e uppl.)National Security Archive (U.S.), et al. U.S. Military Uses of Space, 1945-1991: Guide and Index. National Security Archive ; Chadwyck-Healey, 1991.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.