{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"The Umbral Calculus (Dover Books on Mathematics)","author_name":"Steven Roman","thumbnail_url":"https://www.ebooknetworking.net/books/048/644/big0486441393.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0486441393.html\">The Umbral Calculus (Dover Books on Mathematics)</a>","width":400,"height":300}