{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Div, Grad, Curl and All That - An Informal Text on Vector Calculus","author_name":"H M Schey","thumbnail_url":"https://www.ebooknetworking.net/books/noimage.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0393093670.html\">Div, Grad, Curl and All That - An Informal Text on Vector Calculus</a>","width":400,"height":300}