Jahn, Theodore Louis,  1905- <br/><br/>
How to know the Protozoa / 
Theodore Louis Jahn and Francis Floed Jahn. 
 - 2nd ed. 
 - Dubuque :  W. C. Brown ,  c1979. 
 - xi, 279 p. :   Ill. ;  23 cm 
 - Pictured-key nature series .
 - Pictured-key nature series .
<br/><br/>Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Protozoa.
<br/><br/><label>Dewey Class. No.: </label>579.4  / JAH 1979