{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Air-screws: an introduction to the aerofoil theory of screw propulsion","author_name":"M. A. S. Riach","thumbnail_url":"https://www.ebooknetworking.net/books/B00/3YD/bigB003YDXFVQ.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B003YDXFVQ.html\">Air-screws: an introduction to the aerofoil theory of screw propulsion</a>","width":400,"height":300}