{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Instrumental Calculation Or a Treatise On the Sliding Rule","author_name":"T H. McLeod","thumbnail_url":"https://www.ebooknetworking.net/books/114/494/big1144945003.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1144945003.html\">Instrumental Calculation Or a Treatise On the Sliding Rule</a>","width":400,"height":300}