It's the sentence that quoted the reference in the paper, mark it, and then write the reference you quoted at the end of this page.

First, select the text you quoted. There are references in the insertion section, and choose a footnote in it. Just choose the symbol style you want. After selecting it, it will automatically jump to the end of the page, and you only need to enter your reference materials.

Your cross-references are items such as indicator questions, charts and tables. . Do you mean that all your references are at the end of the paper? That's an endnote.