TY  - BOOK
AU  - Condit,Daniel Dale
TI  - Economic geology of the Summerfield and Woodsfield quadrangles, Ohio,: with descriptions of coal and other mineral resources except oil and gas,
AV  - QE75 .B9 no. 720
PY  - 1923///
CY  - Washington
PB  - U.S. Govt. Print. Off.
KW  - Geology, Economic
KW  - Mines and mineral resources
KW  - Ohio
N1  - At head of title: Department of the Interior; Colored maps folded in pocket; Many plates printed on both sides of leaf; Bibliography: p. 6
ER  -