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The present and future of public safety communications : hearing before the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Tenth Congress, first session, February 8, 2007
- "The present and future of public safety communications : hearing before the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Tenth Congress, first session, February 8, 2007"@en
- "The present and future of public safety communications hearing before the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Tenth Congress, first session, February 8, 2007"@en