{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"An Introduction To The Theory And Practice Of Plain And Spherical Trigonometry And The Stereographic Projection Of The Sphere; Including The Theory Of Navigation","author_name":"Thomas Keith","thumbnail_url":"https://www.ebooknetworking.net/books/116/330/big1163301779.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1163301779.html\">An Introduction To The Theory And Practice Of Plain And Spherical Trigonometry And The Stereographic Projection Of The Sphere; Including The Theory Of Navigation</a>","width":400,"height":300}