Gray, Henry Hamilton,  1922- <br/><br/>
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 .
<br/><br/>With : Minerals of Indiana.  Bloomington : State of Indiana, Dept. of Conservation, Geological Survey, 1960.  Bound together subsequent to publication. 
<br/><br/>Bibliography: p.62-64. 
<br/><br/><label>LCCN: </label>gs 61000249  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--Indiana--Huron area.
<br/><br/><label>LC Class. No.: </label>QE109  / .A32 no. 20 
<br/><br/><label>Dewey Class. No.: </label>557.722