{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Electrical viewpoint in a complete safety survey of a coal mine","author_name":"E. J. Gleim","thumbnail_url":"https://www.ebooknetworking.net/books/B00/41O/bigB0041OT85O.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B0041OT85O.html\">Electrical viewpoint in a complete safety survey of a coal mine</a>","width":400,"height":300}