{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Stresses induced around mine development workings by undercutting and caving, Climax Molybdenum Mine, Colorado (in two parts)","author_name":"Utter, Stephen.","thumbnail_url":"https://www.ebooknetworking.net/books/B00/427/bigB00427ZORG.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B00427ZORG.html\">Stresses induced around mine development workings by undercutting and caving, Climax Molybdenum Mine, Colorado (in two parts)</a>","width":400,"height":300}