Science.gov searches databases and selected websites from federal agencies, providing full-text access to authoritative U.S. government science information including research and development results.
The Department of Energy (DOE) Information Bridge provides fulltext access to research and development reports from various subagencies of the DOE.
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The National Climatic Data Center provides access to various climatic data files from the National Oceanic and Atmospheric Administration National Data Center.
AGRICOLA indexes books and journal articles on all aspects of agriculture.