{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Graphical Analysis of Roof Trusses: For the Use of Engineers, Architects and Builders - Primary Source Edition","author_name":"Charles Ezra Greene","thumbnail_url":"https://www.ebooknetworking.net/books/128/940/big1289401934.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1289401934.html\">Graphical Analysis of Roof Trusses: For the Use of Engineers, Architects and Builders - Primary Source Edition</a>","width":400,"height":300}