Geology of the Huron area, south-central Indiana /
Gray, Henry Hamilton, 1922-
Geology of the Huron area, south-central Indiana / by Henry H. Gray, Robert D. Jenkins [and] Robert M. Weidman. - Bloomington : State of Indiana, Dept. of Conservation, Geological Survey, 1960. - 78 p. : illus., maps (1 fold. col. in pocket), diagrs., tables ; 23 cm. - Indiana. Geological Survey. Bulletin no. 20 .
With : Minerals of Indiana. Bloomington : State of Indiana, Dept. of Conservation, Geological Survey, 1960. Bound together subsequent to publication.
Bibliography: p.62-64.
gs 61000249
Geology--Indiana--Huron area.
QE109 / .A32 no. 20
557.722
Geology of the Huron area, south-central Indiana / by Henry H. Gray, Robert D. Jenkins [and] Robert M. Weidman. - Bloomington : State of Indiana, Dept. of Conservation, Geological Survey, 1960. - 78 p. : illus., maps (1 fold. col. in pocket), diagrs., tables ; 23 cm. - Indiana. Geological Survey. Bulletin no. 20 .
With : Minerals of Indiana. Bloomington : State of Indiana, Dept. of Conservation, Geological Survey, 1960. Bound together subsequent to publication.
Bibliography: p.62-64.
gs 61000249
Geology--Indiana--Huron area.
QE109 / .A32 no. 20
557.722