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Includes communications, education, languages, literature, philosophy, religion, music, art, and other cultural aspects of humanity.
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Includes governing actions controlled by the law, as well as congressional documents, the Federal Register, nuclear regulations, et cetera.
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Includes documents and collections on American History, geography, political science, psychology, and sociology.
Includes aerospace, aviation, engineering (physics, materials, ceramics, opticals) electronics, artificial intelligence, and computer science.
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