TY  - RPRT
TI  - Environmental tracers for age dating young ground water
AU  - L.N. Plummer
AU  - R. L. Michel
AU  - E.M. Thurman
AU  - Pierre D. Glynn
PY  - 1993
UR  - https://pubs.usgs.gov/publication/70198700
ID  - 70198700
ER  -