Periodical is a publication that is published periodically. Under this definition, we have three types:
Magazine Journal Newspaper
APA Style
Citing a Periodical
Periodical Article Reference Parts:
Journal Article
Include the volume number for all journals, and italicize this. Include the issue number if the journal is paginated by volume (each volume of the journal starts numbering the pages at “1”).
Article in a newspaper
Article in a magazine
For an article found on an online journal from a database, such as Academic Search Complete (APA 6.32):
-OR
DOI
APA suggests adding the digital object identifier (doi) at the end of the citation if it is provided in an online article. Most professors at TWU require an inclusion of the doi for all electronic articles.
If there is no doi that has been assigned to the article, provide the home page of the journal or of the book or report publisher. If you are accessing the article from a private database, you may need to do a quick web search to locate this URL.