{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"The Expanding Universe: Astronomy's 'Great Debate', 1900-1931","author_name":"Robert W. Smith","thumbnail_url":"https://www.ebooknetworking.net/books/052/113/big0521130069.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0521130069.html\">The Expanding Universe: Astronomy&#039;s &#039;Great Debate&#039;, 1900-1931</a>","width":400,"height":300}