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 Representatives

MLA

Chaplain, Cristina T. and United States. 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 Representatives. [Washington, D.C.] : U.S. Govt. Accountability Office, [2009]

APA

Chaplain, C. & United States. (2009). 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 Representatives. [Washington, D.C.] : U.S. Govt. Accountability Office.

Chicago

Chaplain, Cristina T. and United States. 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 Representatives. [Washington, D.C.] : U.S. Govt. Accountability Office, [2009]