TY - RPRT TI - Digital data used to relate nutrient input to water quality in the Chesapeake Bay watershed AU - John W. Brakebill AU - Stephen D. Preston AU - Sarah K. Martucci PY - 2001 DO - 10.3133/ofr01251 UR - https://pubs.usgs.gov/publication/ofr01251 ID - ofr01251 ER -