{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Plane and spherical trigonometry,: and Four-place tables of logarithms,","author_name":"William Anthony Granville","thumbnail_url":"https://www.ebooknetworking.net/books/142/977/big1429777346.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1429777346.html\">Plane and spherical trigonometry,: and Four-place tables of logarithms,</a>","width":400,"height":300}