Water-quality data-collection activities in Colorado and Ohio; Phase II, Evaluation of 1984 field and laboratory quality-assurance practices

1987 ◽  
Author(s):  
Carolyn J. Oblinger Childress ◽  
Thomas H. Chaney ◽  
Donna Myers ◽  
J. Michael Norris ◽  
Janet Hren



2003 ◽  
Author(s):  
G. Allan Brown ◽  
Edward A. Pustay ◽  
Jacob Gibs


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