TY  - RPRT
TI  - Source, movement, and effects of nitrogen and phosphorus in three ponds in the headwaters of Hop Brook, Marlborough, Massachusetts
AU  - John C. Briggs
AU  - William D. Silvey
PY  - 1984
DO  - 10.3133/wri844017
UR  - https://pubs.usgs.gov/publication/wri844017
ID  - wri844017
ER  -