下载 APKPure App
可在安卓获取The Science of Sociology的历史版本
阅读“社会学概论的科学”，由伯吉斯和Park！
Read "Introduction to the Science of Sociology" by E. W. (Ernest Watson) Burgess and Robert Ezra Park!
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.