{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"The treasury of fortification. Wherein that art is made intelligible to the meanest capacity; and the several methods of fortifying explained. Also, a ... to fortifie irregular places.  By John Barker","author_name":"John Baker","thumbnail_url":"https://www.ebooknetworking.net/books/noimage.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1171371713.html\">The treasury of fortification. Wherein that art is made intelligible to the meanest capacity; and the several methods of fortifying explained. Also, a ... to fortifie irregular places.  By John Barker</a>","width":400,"height":300}