{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"A Complete Treatise on Field Fortification: with the General Outlines of the Principles Regulating the Arrangement, the Attack, and the Defence of Permanent Works (West Point Military Library)","author_name":"Dennis Hart Mahan","thumbnail_url":"https://www.ebooknetworking.net/books/083/710/big0837105579.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0837105579.html\">A Complete Treatise on Field Fortification: with the General Outlines of the Principles Regulating the Arrangement, the Attack, and the Defence of Permanent Works (West Point Military Library)</a>","width":400,"height":300}