TY - RPRT TI - Sources of nitrate in snowmelt discharge: Evidence from water chemistry and stable isotopes of nitrate AU - K.B. Piatek AU - M.J. Mitchell AU - S. R. Silva AU - C. Kendall PY - 2005 DO - 10.1007/s11270-005-4641-8 UR - https://pubs.usgs.gov/publication/70029572 ID - 70029572 ER -