APA reference list example: Data set or graphic representation. The author is an organization: Gallup. The date is listed by year, month and day in parentheses, followed by a period: (2008, October 23). The title is italicized, followed by no punctuation: No increase in proportion of first-time voters The label is listed in brackets, followed by a period: [Graphs]. The words “Retrieved from” are followed by the URL, with no period at the end: http://www.gallup.com/poll/111331/No-Increase-Proportion-First-Time-Voters.aspx