:Looking at the issue again, and having checked some of my previous assumptions and found them to be incorrect, I'm inclined to agree with you.  I was not aware that there was text in the article itself clarifying that the book was commercially available (which a reader might assume it was not, after reading that PublishAmerica withdrew their "acceptance") and with that information available in the article text, the article links become redundant.  Also, it is clearly inappropriate to link to the Amazon page for a book, since Amazon has no relationship to a book other than retailing it; however, I don't think the same can be said automatically about linking to the book's publisher.