TY - RPRT TI - Annual suspended sediment and trace element fluxes in the Mississippi, Columbia, Colorado, and Rio Grande drainage basins AU - A. J. Horowitz AU - K. A. Elrick AU - J.J. Smith PY - 2001 DO - 10.1002/hyp.209 UR - https://pubs.usgs.gov/publication/70024020 ID - 70024020 ER -