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Project Gutenberg was the first provider of free electronic books, or eBooks. Michael Hart, founder of Project Gutenberg, invented eBooks in 1971 and his memory continues to inspire the creation of eBooks and related technologies today.The Recitation by George Herbert BettsAuthor: Betts, George Herbert, 1868-1934,Language: English, Class: LB: Education: Theory and practice of education, Release Date: Jun 26, 2006

《Dr. Hardhack‘s Prescription: A Play for Children in Four Acts》
《Transactions of the American Society of Civil Engineers, Vol. LXVIII, Sept. 1910》
《The Adventure of the Red Circle》
《For the Sake of the School》
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