{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Vega seven place logarithmic tables of numbers and trigonometrical functions","author_name":"","thumbnail_url":"https://www.ebooknetworking.net/books/B00/81V/bigB0081V8D0Y.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B0081V8D0Y.html\">Vega seven place logarithmic tables of numbers and trigonometrical functions</a>","width":400,"height":300}