Open Libra, a huge library of books in digital format but with an added attractant: All books are open access, which means they are under Creative Commons license so it can be downloaded and distributed freely.
The Free Library've been waiting
Last updated on 2013年11月04日
此版本包含小幅錯誤修正和一般改善。請更新至最新版本，以獲得最佳體驗。
