{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Unfree Labor: American Slavery and Russian Serfdom (Belknap Press)","author_name":"Peter Kolchin","thumbnail_url":"https://www.ebooknetworking.net/books/067/492/big0674920988.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0674920988.html\">Unfree Labor: American Slavery and Russian Serfdom (Belknap Press)</a>","width":400,"height":300}