{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Calculus: Several Variables","author_name":"Saturnino L. Salas, Einar Hille, Garret J. Etgen","thumbnail_url":"https://www.ebooknetworking.net/books/047/144/big0471449709.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0471449709.html\">Calculus: Several Variables</a>","width":400,"height":300}