<http://schema.org/author>
"http://authors.simonandschuster.com:80/Robert-M-DeGraaff/410047200"^^<http://www.w3.org/2001/XMLSchema#string>
<http://books.simonandschuster.com/The-Book-of-the-Toad/Robert-M-DeGraaff/9780892812615>