TY - RPRT TI - Nitrogen and Phosphorus Concentrations and Fluxes of Streams in the Mississippi Embayment Study Unit, 1996-98 AU - R.H. Coupe PY - 2002 DO - 10.3133/wri014024 UR - https://pubs.usgs.gov/publication/wri014024 ID - wri014024 ER -