Suggested citation and version history for


  Pool, D.R., and Dickinson, J.E., 2007, Ground-water flow 
       model of the Sierra Vista Subwatershed and Sonoran 
       portions of the Upper San Pedro Basin, southeastern 
       Arizona, United States, and northern Sonora, Mexico: 
       U.S. Geological Survey Scientific Investigations 
       Report 2006-5228 
       [http://pubs.usgs.gov/sir/2006/5228/].



  Version 1.0


  June 28, 2007

  Initial release online at
  http://pubs.usgs.gov/sir/2006/5228/