TY - RPRT TI - Trends in the chemistry of precipitation and surface water in a national network of small watersheds AU - Brent T. Aulenbach AU - R. P. Hooper AU - O.P. Bricker PY - 1996 DO - 10.1002/(sici)1099-1085(199602)10:2<151::aid-hyp355>3.0.co;2-k UR - https://pubs.usgs.gov/publication/70019315 ID - 70019315 ER -