TY  - RPRT
TI  - Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory-Determination of the total phosphorus by a Kjeldahl digestion method and an automated colorimetric finish that includes dialysis
AU  - Charles J. Patton
AU  - Earl P. Truitt
PY  - 1992
DO  - 10.3133/ofr92146
UR  - https://pubs.usgs.gov/publication/ofr92146
ID  - ofr92146
ER  -