Jahn,T.L <br/><br/>
The Protozoa 

 - New york  Simon and Schuster  1953 
 - vi,234p.:ill.;  23cm 
<br/><br/><label>ISBN: </label>0-697-04829-2 
<br/><br/><label>Dewey Class. No.: </label>593.1  / JAH