TY  - RPRT
TI  - Digital data for the preliminary bedrock geologic map of the Roseau 1 degree x 2 degrees quadrangle, Minnesota, U.S.A., and Ontario, Canada in GSMAP version 7.0 format
AU  - Warren C. Day
AU  - Terry L. Klein
AU  - Klaus J. Schulz
PY  - 1991
DO  - 10.3133/ofr90544b
UR  - https://pubs.usgs.gov/publication/ofr90544B
ID  - ofr90544B
ER  -