{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"William Oughtred: A Great Seventeenth-Century Teacher Of Mathematics (1916)","author_name":"Florian Cajori","thumbnail_url":"https://www.ebooknetworking.net/books/116/205/big1162052724.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1162052724.html\">William Oughtred: A Great Seventeenth-Century Teacher Of Mathematics (1916)</a>","width":400,"height":300}