Footnotes and endnotes differ from citations, which are parenthetical references that are placed inline with the text. A footnote or an endnote consists of two parts - the note reference mark and the corresponding note text. Footnotes are positioned at the bottom of the page, whereas endnotes are positioned together on a page at the end of the document. Footnotes and endnotes are used to explain, comment on, or provide references for text in a document.