{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"A Treatise on Spherical Trigonometry: And Its Application to Geodesy and Astronomy, with Numerous Ex","author_name":"John Casey","thumbnail_url":"https://www.ebooknetworking.net/books/110/321/big1103216740.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1103216740.html\">A Treatise on Spherical Trigonometry: And Its Application to Geodesy and Astronomy, with Numerous Ex</a>","width":400,"height":300}