{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Minimizing lead contamination in copper produced by solvent extraction-electrowinning (Report of investigations / United States Dept. of the Interior, Bureau of Mines)","author_name":"T. H Jeffers","thumbnail_url":"https://www.ebooknetworking.net/books/B00/06E/bigB0006EFAA0.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B0006EFAA0.html\">Minimizing lead contamination in copper produced by solvent extraction-electrowinning (Report of investigations / United States Dept. of the Interior, Bureau of Mines)</a>","width":400,"height":300}