In-Text citations are the citations within your paper that point to end of paper reference list. When writing a paper, you want to make sure that you are giving proper credit to any other works. If it is not an original thought or idea, then there should be an in-text citation.
You may need to include a source locator (such as a page number or paragraph number) if you are referencing a specific section of a work. If you use a direct quote in your paper, using a source locator is a requirement. If you are summarizing a work, citing specific page numbers is unnecessary.
https://apastyle.apa.org/style-grammar-guidelines/citations
Parenthetical Citations are the in-text citation information that appear within parentheses. Generally, you need to have the author name, the year of publication, and the source locator (if applicable).
Narrative Citations are when you format the citation to be a part of your sentence. When this occurs, you don't need to include information that is part of the sentence in your citation.
With government websites, there is often an authoring organization (the group in charge of the publication), but also a parent organizations. You'll want to list any parent organizations in the publisher spot in your reference.