{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Mining and Mine Ventilation: A Practical Handbook on the Physics (Classic Reprint)","author_name":"Joseph James Walsh","thumbnail_url":"https://www.ebooknetworking.net/books/133/063/big133063568X.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-133063568X.html\">Mining and Mine Ventilation: A Practical Handbook on the Physics (Classic Reprint)</a>","width":400,"height":300}