In addition, most e-books in the National Library are closed to the public and can only be read in the library. You can register as a user of the reader management system of the National Library. If you have a reader card, you can log in directly with the reader card without registration, read some books from the internet or download them to your computer. If you don't have a reader card, you can also register to read some books on the webpage, but it is less than a reader card.
At present, the homepage of the national map shows that only people who read China can definitely read online, but it is definitely necessary to install pdf reading software.
You can consult the website department in Guo Tu again.