TY  - RPRT
TI  - Occurrence and distribution of microbiological indicators in groundwater and stream water
AU  - Donna S. Francy
AU  - Dennis R. Helsel
AU  - Rebecca A. Nally
PY  - 2000
DO  - 10.2175/106143000x137220
UR  - https://pubs.usgs.gov/publication/70022914
ID  - 70022914
ER  -