In Word software, it can be realized by inserting custom labels in the reference interface and footnotes and inputting the contents of the reference.

Computer: Lenovo L 17 10D

System: Win 10

Software: Word20 19

1, click the reference, and click the above reference.

2. Click the footnote, and then click the footnote above.

3. Enter a custom label, and a window box pops up, where you can enter a custom label.

4. Click Insert, and then click Insert in the lower left corner.

5. Enter the contents, just enter the contents of the following references.