{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Some Quick And Easy Methods Of Calculating: A Simple Explanation Of The Theory And Use Of The Slide-Rule, Logarithms, Etc. (1903)","author_name":"Robert Gordon Blaine","thumbnail_url":"https://www.ebooknetworking.net/books/112/078/big112078641X.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-112078641X.html\">Some Quick And Easy Methods Of Calculating: A Simple Explanation Of The Theory And Use Of The Slide-Rule, Logarithms, Etc. (1903)</a>","width":400,"height":300}