TY  - BOOK
AU  - Owens,Gordon L.
TI  - The Precambrian surface of Ohio,
T2  - Ohio. Division of Geological Survey. Report of investigations,
AV  - QE151 .A186 no. 64
U1  - 557.71/08 s 
PY  - 1967///
CY  - Columbus
KW  - Geology
KW  - Ohio
KW  - Geology, Stratigraphic
KW  - Precambrian
KW  - Borings
N1  - Cover title; Text and map issued in portfolio; Bibliography: p. 3
ER  -