{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Suspension Bridges And Cantilevers - Their Economic Proportions And Limiting Spans","author_name":"David Barnard Steinman","thumbnail_url":"https://www.ebooknetworking.net/books/144/553/big1445539942.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1445539942.html\">Suspension Bridges And Cantilevers - Their Economic Proportions And Limiting Spans</a>","width":400,"height":300}