{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"The theory and practice of surveying: Containing all the instructions requisite for the skilful practice of this art. With a new set of accurate mathematical tables.","author_name":"Robert Gibson","thumbnail_url":"https://www.ebooknetworking.net/books/B00/2WN/bigB002WN2ZTC.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B002WN2ZTC.html\">The theory and practice of surveying: Containing all the instructions requisite for the skilful practice of this art. With a new set of accurate mathematical tables.</a>","width":400,"height":300}