Zangerl, Rainer,  1912- <br/><br/>
Chondrichthyes 1 :  paleozoic elasmobranchii / 
by Rainer Zangerl 
 - Stuttgart :  Gustav Fischer Verlag,  1981 
 - 113 p. :  ill. ;  30 cm. 
 - Handbook of paleoichthyology ;  v.3A .
<br/><br/><label>LCCN: </label>84-141989 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Elasmobranchii, Fossil<br/>Paleontology--Paleozoic