{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"The Civil Engineer's Pocketbook: Mensuration, Trigonometry, Surveying, Etc. (1883)","author_name":"John Cresson Trautwine","thumbnail_url":"https://www.ebooknetworking.net/books/054/883/big054883248X.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-054883248X.html\">The Civil Engineer&#039;s Pocketbook: Mensuration, Trigonometry, Surveying, Etc. (1883)</a>","width":400,"height":300}