{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"A Treatise Containing the Elementary Part of Fortification, Regular and Irregular: With Remarks On the Constructions of the Most Celebrated Authors, ... the Perfection and Imperfection of Their Sev","author_name":"John Muller","thumbnail_url":"https://www.ebooknetworking.net/books/114/881/big1148811982.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1148811982.html\">A Treatise Containing the Elementary Part of Fortification, Regular and Irregular: With Remarks On the Constructions of the Most Celebrated Authors, ... the Perfection and Imperfection of Their Sev</a>","width":400,"height":300}