{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Six place logarithmic tables, together with a table of natural sines, cosines, tangents, and cotange","author_name":"Webster Wells","thumbnail_url":"https://www.ebooknetworking.net/books/111/759/big1117597962.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1117597962.html\">Six place logarithmic tables, together with a table of natural sines, cosines, tangents, and cotange</a>","width":400,"height":300}