{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Optical Theories","author_name":"D. N. Mallik","thumbnail_url":"https://www.ebooknetworking.net/books/110/311/big1103115340.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1103115340.html\">Optical Theories</a>","width":400,"height":300}