{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Sewage disposal of the Calumet District: Report of chief engineer George M. Wisner to the Board of Trustees of the Sanitary District of Chicago","author_name":"George Monroe Wisner","thumbnail_url":"https://www.ebooknetworking.net/books/noimage.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B0008A8CA2.html\">Sewage disposal of the Calumet District: Report of chief engineer George M. Wisner to the Board of Trustees of the Sanitary District of Chicago</a>","width":400,"height":300}