TY  - RPRT
TI  - Calcareous nannofossils and forarninifers from Paleocene and Eocene strata in Maryland and Virginia
AU  - L. M. Bybell
AU  - T. G. Gibson
PY  - 1991
UR  - https://pubs.usgs.gov/publication/70186287
ID  - 70186287
ER  -