scholarly journals Nitrate concentrations, 1936-99, and pesticide concentrations, 1990-99, in the unconfined aquifer in the San Luis Valley, Colorado

2001 ◽  
2012 ◽  
Vol 102 (3) ◽  
pp. 372-381 ◽  
Author(s):  
Keith W. Lindner
Keyword(s):  

1950 ◽  
Vol 27 (9) ◽  
pp. 309-318
Author(s):  
R. Kunkel ◽  
R. Gardner ◽  
A. M. Binkley
Keyword(s):  

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