网址：http://digital.library.upenn.edu/books/

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The Online Books Page

Listing over 2 million free books on the Web - Updated Thursday, July 30, 2015

BOOKS ONLINE

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NEWS

A public domain metadata gift for our 20th birthday -- Blog (Everybody's Libraries) -- Latest Book Listings

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THE INSIDE STORY

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Edited by John Mark Ockerbloom (onlinebooks@pobox.upenn.edu)

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