<http://schema.org/author>
"http://authors.simonandschuster.com:80/Julia-Della-Croce/73601995"^^<http://www.w3.org/2001/XMLSchema#string>
<http://books.simonandschuster.com/The-Pasta-Book-(Williams-Sonoma)/Julia-Della-Croce/9781616280161>