{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"International System of Units: Fundamental Constants and Conversion Factors","author_name":"E. A. Mechtly","thumbnail_url":"https://www.ebooknetworking.net/books/087/563/big0875631398.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0875631398.html\">International System of Units: Fundamental Constants and Conversion Factors</a>","width":400,"height":300}