{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Course of Civil Engineering: Comprising Plane Trigonometry, Surveying, and Levelling. with Their Application to the Construction of Common Roads, Railways, Canals ...","author_name":"John Gregory","thumbnail_url":"https://www.ebooknetworking.net/books/B00/9M7/bigB009M7TSR8.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B009M7TSR8.html\">Course of Civil Engineering: Comprising Plane Trigonometry, Surveying, and Levelling. with Their Application to the Construction of Common Roads, Railways, Canals ...</a>","width":400,"height":300}