@book{ Solr-ocm41080109, title = {Experimental treatment of oxidized lead-silver ore from Eureka, Nev.}, series = {Report of investigations / United States Department of the Interior, Bureau of Mines}, series = {Report of investigations (United States. Bureau of Mines)}, author = {Engel, Abraham L.}, publisher = {U.S. Dept. of the Interior, Bureau of Mines}, year = {1951}, pages = {9}, }