{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"What has been learned about air pollution control? (Environmental pollutants and the urban economy)","author_name":"George S Tolley","thumbnail_url":"https://www.ebooknetworking.net/books/noimage.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B0006WY008.html\">What has been learned about air pollution control? (Environmental pollutants and the urban economy)</a>","width":400,"height":300}