{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"A Practical Treatise On the Science of Land and Engineering Surveying, Leveling, Estimating Quantities, &c","author_name":"Henry S. Merrett","thumbnail_url":"https://www.ebooknetworking.net/books/B00/9JT/bigB009JTO2OI.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B009JTO2OI.html\">A Practical Treatise On the Science of Land and Engineering Surveying, Leveling, Estimating Quantities, &amp;c</a>","width":400,"height":300}