TY  - RPRT
TI  - Surface water supply of the United States, 1921, Part V, Hudson Bay and upper Mississippi River basins
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
PY  - 1924
DO  - 10.3133/wsp525
UR  - https://pubs.usgs.gov/publication/wsp525
ID  - wsp525
ER  -