{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Bell's mathematical tables; together with a collection of mathematical formulae, definitions, and theorems","author_name":"Ludwik Silberstein","thumbnail_url":"https://www.ebooknetworking.net/books/117/802/big1178020509.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1178020509.html\">Bell&#039;s mathematical tables; together with a collection of mathematical formulae, definitions, and theorems</a>","width":400,"height":300}