TY - RPRT TI - Guidelines for the collection, treatment, and analysis of water samples: U.S. Geological Survey Western Region field manual AU - Marc A. Sylvester AU - Lester R. Kister AU - W. B. Garrett PY - 1990 DO - 10.3133/116 UR - https://pubs.usgs.gov/publication/116 ID - 116 ER -