TY  - RPRT
TI  - A historical look at changing water quality in the Delaware River basin
AU  - Jennifer C. Murphy
AU  - Megan E. Shoda
PY  - 2020
DO  - 10.3133/fs20203007
UR  - https://pubs.usgs.gov/publication/fs20203007
ID  - fs20203007
ER  -