{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Gleanings of Freedom: Free and Slave Labor along the Mason-Dixon Line, 1790-1860 (Working Class in American History)","author_name":"Max Grivno","thumbnail_url":"https://www.ebooknetworking.net/books/025/203/big0252036522.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0252036522.html\">Gleanings of Freedom: Free and Slave Labor along the Mason-Dixon Line, 1790-1860 (Working Class in American History)</a>","width":400,"height":300}