{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Notes on the design of machine elements for use in connection with Unwin's machine design Volume 1","author_name":"John Henry Barr","thumbnail_url":"https://www.ebooknetworking.net/books/113/013/big1130131599.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1130131599.html\">Notes on the design of machine elements for use in connection with Unwin&#039;s machine design Volume 1</a>","width":400,"height":300}