CNKI is a comprehensive Chinese academic literature database. In order to standardize the format of references, China Knowledge Network provides the following reference formats:

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First, journal articles:

[1] author. Title of the article [J]. Journal name, year, volume number (issue number): starting and ending page numbers.

For example: Liu Jie. Worried about life on earth [J]. Science and society, 200 1, (3):3-5.

Second, books.

[1] author. Title [M]. Version. Place of publication: publisher, date of publication.

For example: Yao. Read a dream of red mansions [M]. Beijing: Tsinghua University Publishing House, 1999.

Third, the thesis.

[1] author. Thesis title [D]. Winner, year of thesis defense.

For example: Li Guoqiang. On the service function of public library [D]. Tianjin University, 2000.

The above is the reference format of HowNet, but it needs to be adjusted according to different situations in specific applications to ensure that the format is standardized and meets the requirements.