TY  - RPRT
TI  - WATEQ4F -- User's manual with revised thermodynamic data base and test 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/ofr90129
UR  - https://pubs.usgs.gov/publication/ofr90129
ID  - ofr90129
ER  -