{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Physical Principles in the Theory of Economic Growth","author_name":"Vladimir N. Pokrovski","thumbnail_url":"https://www.ebooknetworking.net/books/075/461/big0754611183.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0754611183.html\">Physical Principles in the Theory of Economic Growth</a>","width":400,"height":300}