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Author/Creator
- United States. Congress. Office of Technology Assessment232
- National Institute of Standards and Technology (U.S.)48
- United States. Federal Highway Administration25
- Library of Congress. Congressional Research Service23
- Library of Congress. Science Policy Research Division19
- United States. Congress. House. Committee on Science and Technology. Subcommittee on Science, Research, and Technology18
- United States. Environmental Protection Agency. Office of Research and Development18
- United States. Environmental Protection Agency17
- United States. Congress. House. Committee on Science and Technology16
- United States14
- United States. Congress. House. Committee on Science, Space, and Technology13
- United States. Department of Energy. Office of Clean Coal Technology13
- United States. Department of Energy. Office of Technology Development13
- United States. National Aeronautics and Space Administration13
- United States. Department of Energy12
- United States. Environmental Protection Agency. Technology Innovation Office11
- United States. Office of the Assistant Secretary for Fossil Energy11
- United States. Congress. Joint Economic Committee10
- United States. Department of Defense9
- United States. Office of Fossil Energy9