{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Principles and Practice of Photochemical MacHining and Photoetching","author_name":"David M. Allen","thumbnail_url":"https://www.ebooknetworking.net/books/085/274/big0852744390.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0852744390.html\">Principles and Practice of Photochemical MacHining and Photoetching</a>","width":400,"height":300}