{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Plane and Spherical trigonometry and tables, (Wentworth-Smith mathematical series)","author_name":"George Wentworth","thumbnail_url":"https://www.ebooknetworking.net/books/B00/07F/bigB0007F7SDA.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B0007F7SDA.html\">Plane and Spherical trigonometry and tables, (Wentworth-Smith mathematical series)</a>","width":400,"height":300}