{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"A Vortex Theory of the Electro-Magnetic Field - Scholar's Choice Edition","author_name":"Edmund Joseph Rendtorff","thumbnail_url":"https://www.ebooknetworking.net/books/129/394/big1293948292.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1293948292.html\">A Vortex Theory of the Electro-Magnetic Field - Scholar&#039;s Choice Edition</a>","width":400,"height":300}