The National Emergency Library - search terms "World War II"
https://archive.org/details/nationalemergencylibrary?and%5B%5D=world+war+II&sin=&and%5B%5D=firstTitle%3A%22O%22
- search terms "Nanjing Massacre"
https://archive.org/details/nationalemergencylibrary?and%5B%5D=nanjing+massacre&sin=