{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Compendium of Structural Testing Data for 20-psi Coal Mine Seals","author_name":"Zipf, Dr. Karl","thumbnail_url":"https://www.ebooknetworking.net/books/149/356/big1493564196.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1493564196.html\">Compendium of Structural Testing Data for 20-psi Coal Mine Seals</a>","width":400,"height":300}