{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Population Aging in the United States (Contributions to the Study of Aging)","author_name":"William J. Serow, David F. Sly, J. Michael Wrigley","thumbnail_url":"https://www.ebooknetworking.net/books/031/327/big0313273111.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0313273111.html\">Population Aging in the United States (Contributions to the Study of Aging)</a>","width":400,"height":300}