{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"The practice of engineering field work, applied to land, hydrographic, and hyraulic surveying and levelling: For railways, canals, harbours, towns' ... application of trigonometrical tables","author_name":"W. Davis Haskoll","thumbnail_url":"https://www.ebooknetworking.net/books/B00/3A8/bigB003A8348O.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B003A8348O.html\">The practice of engineering field work, applied to land, hydrographic, and hyraulic surveying and levelling: For railways, canals, harbours, towns&#039; ... application of trigonometrical tables</a>","width":400,"height":300}