TY  - RPRT
TI  - Geology and mineral resources of the Cleveland district, Ohio
AU  - Henry Platt Cushing
AU  - Frank Leverett
AU  - Frank Robertson. Van Horn
PY  - 1931
DO  - 10.3133/b818
UR  - https://pubs.usgs.gov/publication/b818
ID  - b818
ER  -