{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"A   Practical Treatise on Cast and Wrought Iron Bridges and Girders: As Applied to Railway Structures, and to Buildings Generally, with Numerous Examp","author_name":"William Humber","thumbnail_url":"https://www.ebooknetworking.net/books/129/545/big1295459213.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1295459213.html\">A   Practical Treatise on Cast and Wrought Iron Bridges and Girders: As Applied to Railway Structures, and to Buildings Generally, with Numerous Examp</a>","width":400,"height":300}