R.W. Stallman (1924-1977)--an underappreciated contributor to hydrogeology.
Weeks
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EP
US Geological Survey, Lakewood, CO 80225, USA. epweeks@usgs.gov
D005844:Geology / Q000266:history*; D049673:History, 20th Century; D014481:United States; D014867:Water
D014867:Water