{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Background report on outdoor-indoor noise reduction calculation procedures employing the exterior wall noise rating (EWNR) method","author_name":"Gary E. Mange","thumbnail_url":"https://www.ebooknetworking.net/books/B00/2ZV/bigB002ZVOZO4.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B002ZVOZO4.html\">Background report on outdoor-indoor noise reduction calculation procedures employing the exterior wall noise rating (EWNR) method</a>","width":400,"height":300}