Lead--soft and easy to cast [electronic resource] / [text prepared by S.J. Kropschot and Jeff L. Doebrich] ; USGS Mineral Resources Program

Author:: Kropschot, S. J. (Susan J.)
Additional Titles:: Lead, soft and easy to cast
Published:: [Reston, VA] : [U.S. Dept. of the Interior, U.S. Geological Survey], [2011]
Physical Description:: 1 online resource (2 unnumbered pages) pages : color illustrations
Additional Creators:: Doebrich, Jeff L. and Mineral Resources Program (Geological Survey)