Farrell, Jeanette. <br/><br/>
Invisible allies :  microbes that shape our lives / 
Jeanette Farrell. 
 - 1st ed. 
 - New York :  Farrar, Straus, and Giroux,  2005. 
 - 165 p. ;  ill. ; 
<br/><br/> Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0374336083 9780374336080 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Microbiology--Juvenile literature.<br/>Microorganisms--Juvenile literature.
<br/><br/><label>LC Class. No.: </label>QR57  / .F37 2005