TY  - RPRT
TI  - Hydrogeochemistry of rivers and lakes
AU  - John David Hem
AU  - Adrian Demayo
AU  - Richard A. Smith
PY  - 1990
DO  - 10.1130/dnag-gna-o1.189
UR  - https://pubs.usgs.gov/publication/70199820
ID  - 70199820
ER  -