{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Power Density: A Key to Understanding Energy Sources and Uses","author_name":"Smil, Vaclav","thumbnail_url":"https://www.ebooknetworking.net/books/026/202/big0262029146.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0262029146.html\">Power Density: A Key to Understanding Energy Sources and Uses</a>","width":400,"height":300}