{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"The Age of Mass Migration: Causes and Economic Impact","author_name":"Timothy J. Hatton, Jeffrey G. Williamson","thumbnail_url":"https://www.ebooknetworking.net/books/019/511/big0195116518.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0195116518.html\">The Age of Mass Migration: Causes and Economic Impact</a>","width":400,"height":300}