TY  - RPRT
TI  - Ground-water flow, geochemistry, and effects of agricultural practices on nitrogen transport at study sites in the Piedmont and Coastal Plain physiographic provinces, Patuxent River basin, Maryland
AU  - Randolph E. McFarland
PY  - 1997
DO  - 10.3133/wsp2449
UR  - https://pubs.usgs.gov/publication/wsp2449
ID  - wsp2449
ER  -