TY  - RPRT
TI  - Geologic map of the Greenland and Rockland quadrangles, Ontonagan County, Michigan
AU  - Jesse W. Whitlow
PY  - 1972
DO  - 10.3133/ofr741123
UR  - https://pubs.usgs.gov/publication/ofr741123
ID  - ofr741123
ER  -