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National Technical Reports Library

Provides access to 3+ million (over 800,000 full-text) authenticated U.S. government-sponsored technical reports collected and archived by the National Technical Information Service (NTIS). This collection contains both historical and current reports on a wide variety of subjects including: Agriculture, Atmospheric Sciences, Business & Economics, Chemistry, Civil Engineering, Health Care, Mathematical Sciences, Medicine & Biology, Military Sciences, Natural Resources, Physics, and more.