{"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 and Chemistry of Mining and Mine Ventilation for Vocational Schools, and for Those ... Mine Foreman and Mine Inspector Certificates","author_name":"Joseph James Walsh","thumbnail_url":"https://www.ebooknetworking.net/books/137/555/big137555994X.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-137555994X.html\">Mining and Mine Ventilation: A Practical Handbook On the Physics and Chemistry of Mining and Mine Ventilation for Vocational Schools, and for Those ... Mine Foreman and Mine Inspector Certificates</a>","width":400,"height":300}