TY  - RPRT
TI  - Artifact from deposits of mid-Wisconsin age in Illinois
AU  - P.J. Munson
AU  - J.C. Frye
PY  - 1965
DO  - 10.1126/science.150.3704.1722
UR  - https://pubs.usgs.gov/publication/70010525
ID  - 70010525
ER  -