TY - RPRT TI - Water-quality trends in the Rio Grande/Rio Bravo Basin using sediment cores from reservoirs AU - Peter C. Van Metre AU - B.J. Mahler AU - Edward C. Callender PY - 1997 DO - 10.3133/fs22196 UR - https://pubs.usgs.gov/publication/fs22196 ID - fs22196 ER -