TY  - RPRT
TI  - Structure of the Berea oil sand in the Summerfield quadrangle, Guernsey, Noble, and Monroe Counties, Ohio
AU  - D. D. Condit
PY  - 1916
DO  - 10.3133/b621n
UR  - https://pubs.usgs.gov/publication/b621N
ID  - b621N
ER  -