{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"The Principles Underlying Radio Communication (Classic Reprint)","author_name":"United States. National Bureau Of Standards","thumbnail_url":"https://www.ebooknetworking.net/books/144/007/big1440078599.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1440078599.html\">The Principles Underlying Radio Communication (Classic Reprint)</a>","width":400,"height":300}