{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Researches Into the Mathematical Principles of the Theory of Wealth","author_name":"Antoine Augustin Cournot","thumbnail_url":"https://www.ebooknetworking.net/books/055/470/big0554700557.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0554700557.html\">Researches Into the Mathematical Principles of the Theory of Wealth</a>","width":400,"height":300}