{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"General Instructions & Rules for Prevention of Accidents, Mine Department 1922, United Verde Copper Company","author_name":"H. De Witt (Mine Superintendent). Tally, Robert E. Asst. General Manager United Verde Copper Company. Smith","thumbnail_url":"https://www.ebooknetworking.net/books/noimage.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B003X6BCT6.html\">General Instructions &amp; Rules for Prevention of Accidents, Mine Department 1922, United Verde Copper Company</a>","width":400,"height":300}