Citing Sources, BrainPop Video: Citing sources is when you write down all of the sources that you use in a report, essay, or project. Usually, in a bibiliography. A bibiliography is a page at the end of a report, that cites all of the sources used. Including the author, source title, publisher, editor, and the year it was published. A source is where you get information, like a book or a website, even if you get from the "horse's mouth". All of the citations should be listed in alabhetical order. Citations are the list of all the information that you list for each source. SOme teachers will tell you to cite your sources in the footnote, a footnote is a side-comment at the bottom of the page. Usually, footnotes are shown by little numbers by the quote, and then the cite is at the bottom or sometimes the top.