TY - RPRT TI - Water Resources Data for Montana, Water Year 1980--Volume 1. Hudson Bay Basin, Missouri River Basin AU - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey PY - 1981 DO - 10.3133/wdrmt801 UR - https://pubs.usgs.gov/publication/wdrMT801 ID - wdrMT801 ER -