TY  - RPRT
TI  - Source and origin of Roxana Silt and middle Wisconsinan midcontinent glacial activity
AU  - W.H. Johnson
AU  - L.R. Follmer
PY  - 2017
DO  - 10.1016/0033-5894(89)90040-9
UR  - https://pubs.usgs.gov/publication/70015386
ID  - 70015386
ER  -