The Goodreads entry for this Viking Critical Library edition (at https://www.goodreads.com/book/show/1...) is incorrect. It shows a page count of 560. The actual last page in the copy that I own, which is from the 9th printing, is page 538. You'll probably notice that WorldCat has no separate entry for the Viking Critical edition. I wonder if you can find another way to verify the page count.
As always, I appreciate the work of the librarians!
As always, I appreciate the work of the librarians!