{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"The Slide-Rule, and How to Use It","author_name":"Charles Hoare","thumbnail_url":"https://www.ebooknetworking.net/books/114/641/big1146417306.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1146417306.html\">The Slide-Rule, and How to Use It</a>","width":400,"height":300}