{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"A New Method of Calculating the Cubic Contents of Excavations and Embankments, by the Aid of Diagrams: Together with Direction for Estimating the Cost of Earthwork","author_name":"John Cresson Trautwine","thumbnail_url":"https://www.ebooknetworking.net/books/114/774/big1147742219.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1147742219.html\">A New Method of Calculating the Cubic Contents of Excavations and Embankments, by the Aid of Diagrams: Together with Direction for Estimating the Cost of Earthwork</a>","width":400,"height":300}