FEDERAL DOCUMENTS |
Annual report, 1989. |
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Computer security : hearing before the Subcommittee on Technology and Competitiveness of the Committee on Science, Space, and Technology, U.S. House of Representatives, One Hundred Second Congress, first session, June 27, 1991. |
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Issues in medical waste management : background paper. |
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Materials processing in space : early experiments / by Robert J. Naumann and Harvey W. Herring. |