{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Treatise on land-surveying: Comprising the theory developed from five elementary principles; and the practice with the chain alone, the compass, the ... four hundred engravings, and a magnetic chart","author_name":"W. M Gillespie","thumbnail_url":"https://www.ebooknetworking.net/books/noimage.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B00085WHZS.html\">Treatise on land-surveying: Comprising the theory developed from five elementary principles; and the practice with the chain alone, the compass, the ... four hundred engravings, and a magnetic chart</a>","width":400,"height":300}