{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Elementary surveying: Comprising a course of land surveying with Gunter's chain, and the practice of surveying with Theodolite, pocket-sextant, and ... : together with a section on levelling","author_name":"Jackson, Basil","thumbnail_url":"https://www.ebooknetworking.net/books/B00/08A/bigB0008ASBVM.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B0008ASBVM.html\">Elementary surveying: Comprising a course of land surveying with Gunter&#039;s chain, and the practice of surveying with Theodolite, pocket-sextant, and ... : together with a section on levelling</a>","width":400,"height":300}