下载 APKPure App
可在安卓获取Dewey Decimal Classification的历史版本
阅读“杜威十进分类法”，由杜威梅尔维尔！
Read "Dewey Decimal Classification; A Classification and Subject Index for Cataloguing and Arranging the Books and Pamphlets of a Library" by Melvil Dewey!
Once you install this app, you can read it by 1-click without connecting network.
You can also check your "Reading Score" from the menu.