TY  - RPRT
TI  - Quality-assurance results for field pH and specific-conductance measurements, and for laboratory analysis, National Atmospheric Deposition Program and National Trends Network; January 1980-September 1984
AU  - L.J. Schroder
AU  - M. H. Brooks
AU  - B.A. Malo
AU  - T. C. Willoughby
PY  - 1986
DO  - 10.3133/wri864139
UR  - https://pubs.usgs.gov/publication/wri864139
ID  - wri864139
ER  -