United States. General Accounting Office. (1999). Unmanned aerial vehicles: Progress toward meeting high altitude endurance aircraft price goals : report to congressional committees. The Office.
Chicago Style (17th ed.) CitationUnited States. General Accounting Office. Unmanned Aerial Vehicles: Progress Toward Meeting High Altitude Endurance Aircraft Price Goals : Report to Congressional Committees. Washington, D.C. (P.O. Box 37050, Washington, D.C. 20013): The Office, 1999.
MLA (9th ed.) CitationUnited States. General Accounting Office. Unmanned Aerial Vehicles: Progress Toward Meeting High Altitude Endurance Aircraft Price Goals : Report to Congressional Committees. The Office, 1999.
Warning: These citations may not always be 100% accurate.