{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"California Underground: A Guide to Caves, Mines and Lava Tubes","author_name":"Jon Kramer","thumbnail_url":"https://www.ebooknetworking.net/books/159/193/big1591932300.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1591932300.html\">California Underground: A Guide to Caves, Mines and Lava Tubes</a>","width":400,"height":300}