APA Style (7th ed.)
A periodical is anything that is published on a regular, predictable schedule, such as a journal, a report from an annual conference, or a corporate annual report. For examples of many types of periodical references, please search WriteAnswers for a specific resource type (e.g., journal article) or see pages 316-321 in the APA Style manual (7th ed.).
Reference
American Psychological Association. (2020). Publication manual of the American Psychological Association (7th ed.). https://doi.org/10.1037/0000165-000
