scholarly journals Variability of nitrate concentrations in the shallow ground water in a selected area of the San Luis Valley, south-central Colorado

Fact Sheet ◽  
1997 ◽  
Author(s):  
Robert W. Stogner, Sr.
1992 ◽  
Vol 94 (1-4) ◽  
pp. 55-86 ◽  
Author(s):  
Karel L Rogers ◽  
Edwin E Larson ◽  
Gary Smith ◽  
Danny Katzman ◽  
Gerald R Smith ◽  
...  

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