{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"A Treatise On Surveying: Containing the Theory and Practice : To Which Is Prefixed a Perspicuous System of Plane Trigonometry : The Whole Clearly ... Particularlry Adapted to the Use of S","author_name":"John Gummere","thumbnail_url":"https://www.ebooknetworking.net/books/B00/ANY/bigB00ANYNKW8.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B00ANYNKW8.html\">A Treatise On Surveying: Containing the Theory and Practice : To Which Is Prefixed a Perspicuous System of Plane Trigonometry : The Whole Clearly ... Particularlry Adapted to the Use of S</a>","width":400,"height":300}