{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Twenty-Five Centuries of Technological Change: An Historical Survey (Fundamentals of Pure and Applied Economics)","author_name":"J. Mokyr","thumbnail_url":"https://www.ebooknetworking.net/books/041/543/big0415436753.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0415436753.html\">Twenty-Five Centuries of Technological Change: An Historical Survey (Fundamentals of Pure and Applied Economics)</a>","width":400,"height":300}