{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Principles of stratigraphy","author_name":"Amadeus William Grabau","thumbnail_url":"https://www.ebooknetworking.net/books/123/610/big1236101111.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1236101111.html\">Principles of stratigraphy</a>","width":400,"height":300}