Global Positioning System
Significant Challenges in Sustaining and Upgrading Widely Used Capabilities : Testimony Before the Subcommittee on National Security and Foreign Affairs, Committee on Oversight and Government Reform, House of RepresentativesWebsite or Online Data - 2009
Publisher: [Washington, D.C.] : U.S. Govt. Accountability Office, 
Characteristics: 1 online resource (11 p.) : ill.
Alternative Title: Significant challenges in sustaining and upgrading widely used capabilities