{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Trigonometrical surveying, levelling, and railway engineering","author_name":"William Galbraith","thumbnail_url":"https://www.ebooknetworking.net/books/113/011/big1130118436.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1130118436.html\">Trigonometrical surveying, levelling, and railway engineering</a>","width":400,"height":300}