{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"A method of calculating the cubic contents of excavations and embankments, by the aid of diagrams. T","author_name":"John Cresson Trautwine","thumbnail_url":"https://www.ebooknetworking.net/books/111/699/big1116990636.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1116990636.html\">A method of calculating the cubic contents of excavations and embankments, by the aid of diagrams. T</a>","width":400,"height":300}