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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 Life of an InsectAuthor: ,Language: English, Class: QL: Science: Zoology, Release Date: Apr 13, 2014

《The Deaf Shoemaker: To Which Are Added Other Stories for the Young》
《Marriage as a Trade》
《A Spanish Anthology》
《Principles of Mining: Valuation, Organization and Administration》
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