TY  - RPRT
TI  - Search for high-calcium limestone in Silurian reefs of northern Indiana
AU  - C.H. Ault
AU  - D.D. Carr
PY  - 1981
DO  - 10.1130/0016-7606(1981)92<641:sfhlis>2.0.co;2
UR  - https://pubs.usgs.gov/publication/70012093
ID  - 70012093
ER  -