{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Methane accumulations from interrupted ventilation: with special reference to coal mines in Illinois and Indiana","author_name":"Howard I. Smith","thumbnail_url":"https://www.ebooknetworking.net/books/B00/41O/bigB0041OT47Q.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B0041OT47Q.html\">Methane accumulations from interrupted ventilation: with special reference to coal mines in Illinois and Indiana</a>","width":400,"height":300}