{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Methods of Working Coal and Metal Mines: Planning and Operations: Planning and Operation of Mining Systems v. 3","author_name":"Seth D. Woodruff","thumbnail_url":"https://www.ebooknetworking.net/books/B01/DDM/bigB01DDMZ7QS.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B01DDMZ7QS.html\">Methods of Working Coal and Metal Mines: Planning and Operations: Planning and Operation of Mining Systems v. 3</a>","width":400,"height":300}