TY  - RPRT
TI  - The Pennsylvanian Fire Clay tonstein of the Appalachian basin—Its distribution, biostratigraphy, and mineralogy: Discussion and reply
AU  - William Outerbridge
AU  - C. L. Rice
AU  - Harvey E. Belkin
AU  - T.W. Henry
AU  - Michael J. Kunk
PY  - 1995
DO  - 10.1130/0016-7606(1996)108<0120:tpfcto>2.3.co;2
UR  - https://pubs.usgs.gov/publication/70207654
ID  - 70207654
ER  -