Suggested citation and version history for


  Ludington, Steve, Castor, Stephen B., Budahn, James R., 
       and Flynn, Kathryn S., 2005 (revised 2007), 
       Geochemical analyses of geologic materials from 
       Areas of Critical Environmental Concern, Clark and 
       Nye Counties, Nevada:  U.S. Geological Survey Open-
       File Report 2005-1450, version 3.0 
       [http://pubs.usgs.gov/of/2005/1450/ ].


  Version 3.0, September 25, 2007

  All data file2 revised and appended



  Version 2.0, December 1, 2006

  All data file2 revised and appended



  Version 1.0, February 8, 2006

  Initial release online at
  http://pubs.usgs.gov/of/2005/1450/