{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Permissible Dose: A History of Radiation Protection in the Twentieth Century","author_name":"J. Samuel Walker","thumbnail_url":"https://www.ebooknetworking.net/books/052/022/big0520223284.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0520223284.html\">Permissible Dose: A History of Radiation Protection in the Twentieth Century</a>","width":400,"height":300}