<http://schema.org/isbn>
"9781476782621"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.simonandschuster.com/books/The-West-Point-History-of-the-Civil-War/The-United-States-Military-Academy/The-West-Point-History-of-Warfare-Series/9781476782621>