TY  - RPRT
TI  - Plant microfossils of the Hazard No. 7 coal, Perry County, Kentucky
AU  - Robert M. Kosanke
PY  - 1965
DO  - 10.3133/ofr6589
UR  - https://pubs.usgs.gov/publication/ofr6589
ID  - ofr6589
ER  -