{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Feynman Lectures On Gravitation (Frontiers in Physics S)","author_name":"Richard Feynman, Fernando Morinigo, William Wagner, Brian Hatfield, David Pines","thumbnail_url":"https://www.ebooknetworking.net/books/081/334/big0813340381.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0813340381.html\">Feynman Lectures On Gravitation (Frontiers in Physics S)</a>","width":400,"height":300}