{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"The Unending Frontier: An Environmental History of the Early Modern World","author_name":"John F. Richards","thumbnail_url":"https://www.ebooknetworking.net/books/052/023/big0520230752.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0520230752.html\">The Unending Frontier: An Environmental History of the Early Modern World</a>","width":400,"height":300}