TY - RPRT TI - U.S. Geological Survey Toxic Substances Hydrology Program; abstracts of the technical meeting, Monterey, California, March 11-15, 1991 AU - G. E. Mallard AU - D. A. Aronson PY - 1991 DO - 10.3133/ofr9188 UR - https://pubs.usgs.gov/publication/ofr9188 ID - ofr9188 ER -