TY  - RPRT
TI  - User's manual for WATEQ4F, with revised thermodynamic data base and text cases for calculating speciation of major, trace, and redox elements in natural waters
AU  - J.W. Ball
AU  - D. Kirk Nordstrom
PY  - 1991
DO  - 10.3133/ofr91183
UR  - https://pubs.usgs.gov/publication/ofr91183
ID  - ofr91183
ER  -