L. David Roper
http://www.roperld.com/personal/roperldavid.htm
06-Apr-2016
Sometimes only the Kansas portion is called the Ogallala Aquifer. |
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U.S. Groundwater: http://ga.water.usgs.gov/edu/gwdepletion.html
World Groundwater: http://www.greatlakesdirectory.org/zarticles/080902_water_shortages.htm
L. David Roper interdisciplinary studies
L. David Roper, http://www.roperld.com/personal/roperldavid.htm
6 April, 2016