1. Open Baidu search, enter "Press and Publication Administration" in the search bar, and find the website of State Administration of Press, Publication, Radio, Film and Television _ State Administration of Radio and Television after searching, and click Enter.

2. After entering the website of State Administration of Press, Publication, Radio, Film and Television _ State Administration of Radio and Television, find the item "Business Inquiry" and click Enter.

3. After entering the business inquiry, find the item "Periodical/Periodical Agency Inquiry" and click Enter.

4. After entering the periodical/periodical agency, enter specific information and verification code to find specific information, including serial number, etc.

Second, you need to know:

The first part of China Standard Book Number (ISBN) is the main part of this numbering system and can be used independently. It consists of 10 digits, separated by a hyphen "one", and is divided into four parts, which respectively represent the group number, publisher number, book number and parity bit.

The length of the other three segments is variable, except that the parity bit is fixed at one bit, but the sum of the digits of these three segments must be 9 bits. Add a parity bit to make the digits of the ISBN number always equal to 10. When the parity bit is 10, it is represented by the capital letter "X", and when the parity bit is 1 1, it is represented by "O".

Baidu encyclopedia-ISBN