{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Ore Mining Methods, Comprising Descriptions Of Methods Of Support In Extraction Of Ore","author_name":"Walter R. Crane","thumbnail_url":"https://www.ebooknetworking.net/books/054/853/big0548532222.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0548532222.html\">Ore Mining Methods, Comprising Descriptions Of Methods Of Support In Extraction Of Ore</a>","width":400,"height":300}