TY  - RPRT
TI  - User's guide to PHREEQC, a computer program for speciation, reaction-path, advective-transport, and inverse geochemical calculations
AU  - D.L. Parkhurst
PY  - 1995
DO  - 10.3133/wri954227
UR  - https://pubs.usgs.gov/publication/wri954227
ID  - wri954227
ER  -