TY  - RPRT
TI  - Surface-water quality changes after 5 years of nutrient management in the Little Conestoga Creek headwaters, Pennsylvania, 1989-91
AU  - Edward H. Koerkle
AU  - Linda C. Gustafson-Minnich
AU  - Michael D. Bilger
PY  - 1997
DO  - 10.3133/wri974048
UR  - https://pubs.usgs.gov/publication/wri974048
ID  - wri974048
ER  -