:I don't think this is a copivio. The book linked to includes material which is the same as, or very close to, this entire article. However, the book includes text which existed in this article back in 2003, well before most of the text that the book and article share existed in this article. I don't see how that could happen if the text was copied from the book to the article, but it easily could happen if the book is a copy of an earlier version of this article. The listed publisher, ebookeden.com, produces many editions of public domain works, a number of which contain text similar to Wikipedia articles (e.g.  ).