TY  - RPRT
TI  - Water-quality data-collection activities in Colorado and Ohio; Phase II, Evaluation of 1984 field and laboratory quality-assurance practices
AU  - Carolyn J. Oblinger Childress
AU  - Thomas H. Chaney
AU  - Donna Myers
AU  - J. Michael Norris
AU  - Janet Hren
PY  - 1987
DO  - 10.3133/ofr8733
UR  - https://pubs.usgs.gov/publication/ofr8733
ID  - ofr8733
ER  -