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Peconic, Long Island August 2nd, 1939 F. D. Roosevelt, President of the United States, White House Washington, D.C. Sir: Some recent work by E. Fermi and...
years or fewer. This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January...
is a work of a Central Intelligence Agency employee, taken or made as part of that person's official duties. As a Work of the United States Government...
years or fewer. This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January...
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