Wolf, Robert Charles,  1955- <br/><br/>
Fossils of Iowa :  field guide to Paleozoic deposits / 
Robert Charles Wolf illustrated by Carol Ann Ratcliff 
 - Ames :  Iowa State University Press,  1983 
 - x, 198 p. :  ill. ;  21 cm. 
<br/><br/>Includes index Bibliography : p. 189-193 
<br/><br/><label>ISBN: </label>0813813344 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Paleontology--Paleozoic<br/>Paleontology--Iowa