Dorr, John Adam,  1922- <br/><br/>
Geology of Michigan 
[by] John A. Dorr, Jr., and Donald F. Eschman. Illustrated by Derwin Bell. 
 - Ann Arbor,  University of Michigan Press  [1970] 
 - viii, 476 p.  illus., maps.  28 cm. 
<br/><br/>Bibliography: p. 451-457. 
<br/><br/><label>ISBN: </label>0472082809 
<br/><br/><label>LCCN: </label>69017351 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--Michigan.
<br/><br/><label>LC Class. No.: </label>QE125  / .D66 1970 
<br/><br/><label>Dewey Class. No.: </label>557.74