{"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 Examples (Classic Reprint)","author_name":"John Casey","thumbnail_url":"https://www.ebooknetworking.net/books/B00/8KR/bigB008KRNGE2.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B008KRNGE2.html\">A Treatise on Spherical Trigonometry, and Its Application to Geodesy and Astronomy, With Numerous Examples (Classic Reprint)</a>","width":400,"height":300}