The document discusses citation practices and provides four main reasons for citing sources: 1) to give credit to source owners, 2) to assure readers of fact accuracy, 3) to show the research tradition that informs the work, and 4) to help readers follow/extend the research. It then describes two citation styles - reference list style and bibliography style. The reference list style uses parenthetical citations while the bibliography style uses superscript numbers. Both styles require listing sources cited at the end, with the reference list focusing more on authors and the bibliography providing more publication details.