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History of the United States : Beard, Charles A. (Charles Austin), …
History of the United States by Charles A. Beard and Mary Ritter …
The Project Gutenberg eBook of History of the United States, …
15+ U.S. History Books for Free! [PDF] - InfoBooks.org
U.S. History - Open Textbook Library - Center for Open Education
CKHG: A History of the United States - Core Knowledge
The American odyssey : a history of the United States
U.S. History - OpenStax