{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Natural fluoride content of community water supplies, 1969","author_name":"U.S. Department of health, Education, and Welfare","thumbnail_url":"https://www.ebooknetworking.net/books/noimage.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B00Z6GD3T8.html\">Natural fluoride content of community water supplies, 1969</a>","width":400,"height":300}