First, in the text, the serial number of the cited chart should indicate the serial number of the cited literature from which the chart originated. Secondly, the title of the cited chart given with the article should also be marked with the serial number of the cited document. Third, it should be recorded in detail in the bibliography after the text.

When quoting, you should indicate the source of the chart, and the information about the source should be detailed enough for readers to find the original source of the chart through this information. Generally, it should include the author, publication year, published periodicals or books.

Different journals may have different requirements for the listed materials, so it is best to refer to the format guide of the target journals. In addition, if the paper needs to be published publicly, you need to contact the author or publishing house for authorization. Sometimes you may have to pay a certain fee, but it is also very likely that you will meet generous copyright owners and get free use rights.

Chart sources have different reference formats.

1. Journals can be cited in the following formats: reprinted from "paper name", surname, year, journal name, volume (issue), page number, publisher name and copyright (year).

2. Book citation can be in the following format: reprinted from the title (xx pages), by surname, year, place of publication, publishing house and copyright (year).

3. If the chart is obtained online, you need to provide similar details and the website to retrieve the chart. For example, surname, year, webpage title, graphics/tables are all retrieved from [Website].