A program of activities and research in coal geology /
Cady, Gilbert H. 1882-
A program of activities and research in coal geology / by Gilbert H. Cady. - Columbus : State of Ohio, Dept. of Natural Resources, Division of Geological Survey, 1952. - 55 p. : ill., map ; 23 cm. - Information circular ; no. 10 . - Information circular (Ohio. Division of Geological Survey) ; no. 10. .
Includes bibliographical references (p. 55).
gs 53000074
Coal--Ohio.
Coal mines and mining--Ohio.
QE151 / .A183 no. 10
ONR 84.10:10
A program of activities and research in coal geology / by Gilbert H. Cady. - Columbus : State of Ohio, Dept. of Natural Resources, Division of Geological Survey, 1952. - 55 p. : ill., map ; 23 cm. - Information circular ; no. 10 . - Information circular (Ohio. Division of Geological Survey) ; no. 10. .
Includes bibliographical references (p. 55).
gs 53000074
Coal--Ohio.
Coal mines and mining--Ohio.
QE151 / .A183 no. 10
ONR 84.10:10