{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Light, photometry and illumination: a thoroughly rev ed. of \"Electrical illuminating engineering,\"","author_name":"William Edward Barrows","thumbnail_url":"https://www.ebooknetworking.net/books/B00/3U6/bigB003U6YHWS.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B003U6YHWS.html\">Light, photometry and illumination: a thoroughly rev ed. of &quot;Electrical illuminating engineering,&quot;</a>","width":400,"height":300}