Stevenson, Greta . <br/><br/>
The Biology of Fungi, Bacteria nad Virus /  Textual Documents 
Greta Stevenson. 
 -  ill ; 
<br/><br/><label>Subjects--Index Terms: </label>Botany 
<br/><br/><label>Dewey Class. No.: </label>574.232  / St 48 Bi