{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Preparation characteristics of coal from Jefferson County, Pa.","author_name":"William L. Crentz","thumbnail_url":"https://www.ebooknetworking.net/books/B00/30G/bigB0030GEP52.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B0030GEP52.html\">Preparation characteristics of coal from Jefferson County, Pa.</a>","width":400,"height":300}