APA reference list example: Dictionary or other reference work. The editor is listed by last name and initial, followed by the abbreviation E d period in parentheses: Leong, F. T. L. (E d period). The year is listed in parentheses, followed by a period: (2008). The book title is italicized, followed by no punctuation: Encyclopedia of counseling. The total volumes are listed in parentheses followed by a period: (Vols. 1-4). The place of publication is followed by a colon and the publisher: Thousand Oaks, CA: Sage.