{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Guarding trolley wires in mines","author_name":"E. J. Gleim","thumbnail_url":"https://www.ebooknetworking.net/books/B00/3YC/bigB003YC0XV2.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B003YC0XV2.html\">Guarding trolley wires in mines</a>","width":400,"height":300}