TY - RPRT TI - Water resources data for Michigan, water year 1974; Part 2, Water quality records AU - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey PY - 1974 DO - 10.3133/wdrmi742 UR - https://pubs.usgs.gov/publication/wdrMI742 ID - wdrMI742 ER -