TY - RPRT TI - Water resources data for Montana, water year 1974; Part 2, Water quality records AU - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey PY - 1975 DO - 10.3133/wdrmt742 UR - https://pubs.usgs.gov/publication/wdrMT742 ID - wdrMT742 ER -