TY  - RPRT
TI  - Preliminary results of the U.S. Geological Survey-Iowa Department of Natural Resources Geological Survey Bureau Manson Core Drilling Project
AU  - Raymond R. Anderson
AU  - Jack B. Hartung
AU  - Brian J. Witzke
AU  - Eugene Merle Shoemaker
AU  - David J. Roddy
PY  - 1992
DO  - 10.1130/spe293-p237
UR  - https://pubs.usgs.gov/publication/70227571
ID  - 70227571
ER  -