TY  - RPRT
TI  - Index of surface-water records to September 30, 1970; Part 5, Hudson Bay and Upper Mississippi River basins
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
PY  - 1971
DO  - 10.3133/cir655
UR  - https://pubs.usgs.gov/publication/cir655
ID  - cir655
ER  -