TY - RPRT TI - Supplemental chemical analyses of surface waters in the Little Missouri River basin, Montana and North Dakota AU - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey PY - 1951 DO - 10.3133/ofr51165 UR - https://pubs.usgs.gov/publication/ofr51165 ID - ofr51165 ER -