{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"A text-book of field astronomy for engineers.","author_name":"George C. (George Cary) Comstock,","thumbnail_url":"https://www.ebooknetworking.net/books/noimage.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1429777532.html\">A text-book of field astronomy for engineers.</a>","width":400,"height":300}