An article about citing newsletters in APA in text follows.
When citing a newsletter in your written work, you will need to use the Publication Title (in bold) followed by the year of the issue(s) in parentheses. For example:
(Smith, K. (2012).
The art of writing: A newsletter for college students.).
You can also include the issue number if it is available.
If you are citing a series of articles from a newsletter, you would list the Publication Title followed by the year of the last issue in parentheses. The art of writing: A newsletter for college students [Vol. 1], (2013).
The art of writing: A newsletter for college students [Vol. 2], etc.