TY  - RPRT
TI  - Columbus folio, Ohio
AU  - G.D. Hubbard
AU  - C.S. Prosser
AU  - C.R. Stauffer
AU  - J. A. Bownocker
AU  - E.R. Cumings
PY  - 1915
DO  - 10.3133/gf197
UR  - https://pubs.usgs.gov/publication/gf197
ID  - gf197
ER  -