When referring to the book or study as a whole, the page number is not mentioned. Otherwise, pages numbers are mentioned, which is a deviation from the recommendation of APA 7. The abbreviation for a page number is p.
If the same in-text reference covers different pages of the same source, the pages are separated by a comma.
If the reference covers a larger, uninterrupted portion of text, the start and end pages are separated with an n dash (when using Word: press Ctrl and the minus sign):
If the source has no page numbers, refer, according to the part of the source, to a chapter, paragraph, table, or picture:
If you want, you can refer to a certain part of the recording; in that case, indicate the start of the part in question: