TY  - RPRT
TI  - Cambrian-Ordovician boundary strata in the central Midcontinent of North America
AU  - Anthony C. Runkel
AU  - J.F. Miller
AU  - R.M. McKay
AU  - T.H. Shaw
AU  - D.J. Basset
PY  - 1999
UR  - https://pubs.usgs.gov/publication/70021666
ID  - 70021666
ER  -