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Search results for "aggregate travel"

Filters: 1998 1998 ×
Viewing 1 - 20 of 128 results by relevance

National Automated Highway System Research Program: A Review: A Review -- Special Report 253  (1998)

Maintaining U.S. Leadership in Aeronautics: Breakthrough Technologies to Meet Future Air and Space Transportation Needs and Goals  (1998)

From Death to Birth: Mortality Decline and Reproductive Change  (1998)

The Immigration Debate: Studies on the Economic, Demographic, and Fiscal Effects of Immigration  (1998)

People and Pixels: Linking Remote Sensing and Social Science  (1998)

Fostering Research on the Economic and Social Impacts of Information Technology  (1998)

Partners on the Frontier: The Future of U.S.-Russian Cooperation in Science and Technology  (1998)

Biographical Memoirs: Volume 75  (1998)

The Ecology of Industry: Sectors and Linkages  (1998)

Paying the Price: The Status and Role of Insurance Against Natural Disasters in the United States  (1998)

Internet Counts: Measuring the Impacts of the Internet  (1998)