TY  - RPRT
TI  - Preliminary bedrock geologic map of the International Falls 1 degree x 2 degree Quadrangle, Minnesota, U.S.A., and Ontario, Canada
AU  - Warren C. Day
AU  - D. L. Southwick
AU  - K. J. Schulz
AU  - T. L. Klein
PY  - 1987
DO  - 10.3133/ofr87594
UR  - https://pubs.usgs.gov/publication/ofr87594
ID  - ofr87594
ER  -