US Naval Forces, Vietnam Monthly Historical Supplement for August 1969
U.S. Metropolitan Area Exports: An Export Performance Report on Over 250 U.S. Cities, April 1996
U.S. Marine Corps Study of Establishing Time Criteria for Logistics Tasks
U.S. Holiday Travel: Findings from the National Household Travel Survey
U.S. Great Lakes Ports - Statistics for Overseas and Canadian Waterborne Commerce (1979)
Use of Safety Restraint Systems in Virginia by Occupants under 16 Years of Age, Summer 1998
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U.S. Department of Transportation Research, Development, and Technology Plan. Sixth Edition, FY2005
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