First, the copyright pages of regular periodicals that are publicly issued include the name of the publishing unit (indicating the address and telephone number), the unified domestic serial number, the international standard book number and the name of the printing unit; If it is sent by post office, it shall also have a postal code; Barcode on the front or back cover, pricing.

Ii. the domestic standard serial number (CNxx-yyyy/Z) consists of China country code "CN", newspaper registration number "XX-YYY" and classification number "z". Among them, "xx" is the code of the region where the periodical publishing unit is located, "yyyy" is the serial number assigned by the publishing management department (the serial number range of the periodical is "1000-4999"), and the classification number is used to explain the main subject categories of the periodical. For example, "CN35- 1 169/C".

The international standard serial number (1ssnxxxxx-yyyy) consists of 8 digits (two 4 digits with hyphen in the middle), prefixed with "ISSN". Such as "ISSNl234-5678".