{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"The Methods and Materials of Demography (Studies in Population)","author_name":"","thumbnail_url":"https://www.ebooknetworking.net/books/012/641/big0126411506.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0126411506.html\">The Methods and Materials of Demography (Studies in Population)</a>","width":400,"height":300}