{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Preparation characteristics of coal occurring in Armstrong County, Pa.","author_name":"William L. Crentz","thumbnail_url":"https://www.ebooknetworking.net/books/B00/2Y5/bigB002Y5VVR0.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B002Y5VVR0.html\">Preparation characteristics of coal occurring in Armstrong County, Pa.</a>","width":400,"height":300}