{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Rock Excavation: methods and cost","author_name":"Halbert Powers Gillette","thumbnail_url":"https://www.ebooknetworking.net/books/111/392/big1113927070.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1113927070.html\">Rock Excavation: methods and cost</a>","width":400,"height":300}