{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Principles of mercury arc rectifiers and their circuits","author_name":"David Chandler Prince, Francis Brooke Vogdes","thumbnail_url":"https://www.ebooknetworking.net/books/124/508/big1245088017.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1245088017.html\">Principles of mercury arc rectifiers and their circuits</a>","width":400,"height":300}