{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Information Circular 9453 Proceedings: New Technology For Coal Mine Roof Support","author_name":"Centers for Disease Control and Prevention","thumbnail_url":"https://www.ebooknetworking.net/books/149/357/big1493573381.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1493573381.html\">Information Circular 9453 Proceedings: New Technology For Coal Mine Roof Support</a>","width":400,"height":300}