{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"The standards of time and frequency in the U.S.A","author_name":"J. A. Barnes","thumbnail_url":"https://www.ebooknetworking.net/books/B00/41N/bigB0041N3IYC.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B0041N3IYC.html\">The standards of time and frequency in the U.S.A</a>","width":400,"height":300}