{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Machine Shop Arithmetic: Shows How All Shop Problems Are Worked Out And Why (1917)","author_name":"Fred Herbert Colvin, Walter Lee Cheney","thumbnail_url":"https://www.ebooknetworking.net/books/143/706/big1437065945.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1437065945.html\">Machine Shop Arithmetic: Shows How All Shop Problems Are Worked Out And Why (1917)</a>","width":400,"height":300}