TY  - RPRT
TI  - Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory-Determination of triazine and other nitrogen-containing compounds by gas chromatography with nitrogen phosphorus detectors
AU  - D.J. Markovchick
AU  - J.A. Lewis
AU  - R.W. Brenton
AU  - J.L. Iverson
AU  - H.L. Wharry
PY  - 1994
DO  - 10.3133/ofr9437
UR  - https://pubs.usgs.gov/publication/ofr9437
ID  - ofr9437
ER  -