Insert two double-spaced lines below the text on the page with the information that requires a footnote.
Press the tab key; then type a numeral followed a period to begin the footnote. Number footnotes consecutively throughout the paper, beginning with "1."
Type the footnotes single-spaced and left align all lines of text other than the first line of each footnote. Include the author's name and relevant page numbers in a bibliographical footnote. For example, "2. See Jones and Smith, 50-60, for further discussion." Use a parenthetical citation to indicate the source of an explanatory footnote. For example, "3. The researcher held this position throughout her career (Brown, 43)."
Use a superscripted numeral to refer to a footnote in the main text. Place the numeral after the punctuation following the relevant phrase, unless the punctuation is a long dash. For example, "the researchers followed this trail of inquiry later,[4] with few results" or "the researchers followed this trail of inquiry later[4] -- with few results."