{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"The Relation of Geology to Stress Changes Caused by Underground Excavation in Crystalline Rocks at Idaho Springs, Colorado, 1976, Geological Survey Professional Paper, PP 965 : 47 pages with 44 figures and 1 plate.","author_name":"Lee F","thumbnail_url":"https://www.ebooknetworking.net/books/noimage.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B008HUQWGG.html\">The Relation of Geology to Stress Changes Caused by Underground Excavation in Crystalline Rocks at Idaho Springs, Colorado, 1976, Geological Survey Professional Paper, PP 965 : 47 pages with 44 figures and 1 plate.</a>","width":400,"height":300}