TY  - RPRT
TI  - Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory-Preparation procedure for aquatic biological material determined for trace metals
AU  - Gerald L. Hoffman
PY  - 1996
DO  - 10.3133/ofr96362
UR  - https://pubs.usgs.gov/publication/ofr96362
ID  - ofr96362
ER  -