{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Case study of the effects of longwall mining induced subsidence on shallow ground water sources in the northern Appalachian coalfield","author_name":"Jeffrey S. Walker","thumbnail_url":"https://www.ebooknetworking.net/books/B00/3YC/bigB003YC21NK.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B003YC21NK.html\">Case study of the effects of longwall mining induced subsidence on shallow ground water sources in the northern Appalachian coalfield</a>","width":400,"height":300}