TY  - RPRT
TI  - Azomethine H colorimetric method for determining dissolved boron in water
AU  - R.R. Spencer
AU  - D. E. Erdmann
PY  - 2002
DO  - 10.1021/es60156a008
UR  - https://pubs.usgs.gov/publication/70012562
ID  - 70012562
ER  -