ChinaDepartment of public information and publicationsPeriodical reference procedures:

In the bottom column of the national press and publications administration, there's a popular query, click on the first news publisher, go inside, click on the journal, enter the name of the magazine in the media name column, click on the query, if there's a real issue, and if there's no, there's a fake one, but pay attention to the fact that some of these supplements and packages are not clearly divided, especially when choosing to publish the articles of the intermediary, the choice must be honest and credibleJournals are trueFour steps:
I. Whether the number is complete or the format is correct

See if the publication has a single national issue (cn) and an international standard issue (issn), both of which are regular periodicals. If only issn, without cn, can it be considered an illegal publication. The format of a single national issue is: cnxx (2-digit)-xxxx (4-digit)/x (top english letter) for example: cn11-5640/n. The format of the international standard issue number is: issnxxxx (4-digit)-xxxx (4-digit or 3-digit last-digit) examples: issn 1673-9795; issn 1674-098x
Ii. Query of authenticity

Access to the official website of the national press and publications administration to check whether its publication number is registered, by the following means: the official website of the general press and publications administration of the people's republic of china, with a search column for news agencies at the right side of the home page, entry of media names to search for journal names, choice of media category: periodicals. Just click on it. In the case of regular periodicals, it is possible to show a single national issue (cn) and an illegal publication without a single national issue (cn)。
Iii. Mail code

Ask if the journal has a mailing code, and regular periodicals can subscribe to the post office by mail code. Illegal periodicals are generally not distributed at the post office and there are no mail codes. Mail code format xx (1 or 2-digit)-xxx (3-digit).
Iv. Distinguishing between supplements, special publications and the regular magazine.

From the name of the publication, it can be judged that there is only one official publication and that the title can be consulted by means of a “query no. Added to this is a special edition of individual magazines, dedicated to improving their economic efficiency. Illegal publication. Most of its titles are "teaching" or "scientific" or "theory" magazines, or "xx-xx" magazines or "xx-xx " , which are supplements or special features of a particular edition or title. ... Queries are made by means of "query no。




