a reference to additional information usually located at the bottom of the page usually preceded with a superscript number or symbol text formatted in a smaller font size than the surrounding text may include additional citations or links to other sources
footnote which is a reference to additional information footnote which has usually located at the bottom of the page footnote which has usually preceded with a superscript number or symbol footnote which has text formatted in a smaller font size than the surrounding text footnote which may include additional citations or links to other sources