{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"A treatise on the astrolabe, A. D. 1391; Tractatus de Toncsionibus Astrolabii","author_name":"Geoffrey Chaucer","thumbnail_url":"https://www.ebooknetworking.net/books/B01/46I/bigB0146IFLRI.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B0146IFLRI.html\">A treatise on the astrolabe, A. D. 1391; Tractatus de Toncsionibus Astrolabii</a>","width":400,"height":300}