01438nam 2200397 a 450 991070300010332120090811150058.0(CKB)4970000000049626(OCoLC)430072207(EXLCZ)99497000000004962620090811d2009 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierResponses to questions for the Record[electronic resource] March 18, 2009, hearing on ATC modernization : near-term achievable goals /[Gerald L. Dillingham]Washington, DC :U.S. Govt. Accountability Office,[2009]1 online resource (14 pages)Title from title screen (GAO, viewed July 27, 2009)."May 20, 2009.""GAO-09-718R."Includes bibliographical references.Responses To Questions For The RecordNational Airspace System (U.S.)Air traffic controlUnited StatesPlanningNational Airspace System (U.S.)Air traffic controlPlanning.Dillingham Gerald Lee1947-1381675United States.Government Accountability Office.GPOGPODOCUMENT9910703000103321Responses to questions for the Record3426268UNINA