{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Manual of logarithms: treated in connection with arithmetic, algebra, plane trigonometry, and mensuration, for the use of students preparing for army and other examinations","author_name":"G F Matthews","thumbnail_url":"https://www.ebooknetworking.net/books/117/764/big1177647095.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1177647095.html\">Manual of logarithms: treated in connection with arithmetic, algebra, plane trigonometry, and mensuration, for the use of students preparing for army and other examinations</a>","width":400,"height":300}