{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Report of investigations (Volume 293)","author_name":"Report of investigations (United States. Bureau of Mines)","thumbnail_url":"https://www.ebooknetworking.net/books/B00/315/bigB003157XHE.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B003157XHE.html\">Report of investigations (Volume 293)</a>","width":400,"height":300}