{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"An Elementary Treatise On Curve Tracing","author_name":"Percival Frost","thumbnail_url":"https://www.ebooknetworking.net/books/B00/9AW/bigB009AW8J3Y.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B009AW8J3Y.html\">An Elementary Treatise On Curve Tracing</a>","width":400,"height":300}