{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Theory of Steel-Concrete Arches and of Vaulted Structures","author_name":"William Cain","thumbnail_url":"https://www.ebooknetworking.net/books/114/604/big1146043090.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1146043090.html\">Theory of Steel-Concrete Arches and of Vaulted Structures</a>","width":400,"height":300}