TY  - RPRT
TI  - Geology of the Dubuque South quadrangle, Iowa-Illinois
AU  - C. Ervin Brown
AU  - Jesse W. Whitlow
PY  - 1960
DO  - 10.3133/b1123a
UR  - https://pubs.usgs.gov/publication/b1123A
ID  - b1123A
ER  -