USGS directions in MODFLOW development.
Barlow
Paul M
PM
US Geological Survey, Office of Ground Water, MS 411 National Center, 12201 Sunrise Valley Drive, Reston, VA 20192, USA. pbarlow@usgs.gov
Harbaugh
Arlen W
AW
D003198:Computer Simulation; D055593:Geological Phenomena; D005844:Geology; D012984:Software; D014481:United States; D014867:Water
D014867:Water