{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Differential and Integral Calculus ; volumes 1 and 2","author_name":"R. Courant","thumbnail_url":"https://www.ebooknetworking.net/books/B00/1E3/bigB001E3CCSU.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B001E3CCSU.html\">Differential and Integral Calculus ; volumes 1 and 2</a>","width":400,"height":300}