TY  - RPRT
TI  - Technical review of water-quality laboratories providing analytical services for the Water Resources Division of the U.S. Geological Survey
AU  - David E. Erdmann
PY  - 1991
DO  - 10.3133/ofr91223
UR  - https://pubs.usgs.gov/publication/ofr91223
ID  - ofr91223
ER  -