TY  - RPRT
TI  - Isopach and lithofacies map of the Sauk sequence (excluding basal clastics) in the northern Midcontinent, U.S.A.
AU  - W. P. Pratt
PY  - 1987
DO  - 10.3133/mf1835d
UR  - https://pubs.usgs.gov/publication/mf1835D
ID  - mf1835D
ER  -