Krohn, Katherine ; <br/><br/>
Jonas Salk and the Polio Vaccine /  Katherine Krohn. 

 - U.S.A :  Capstone Press;  [c2007] 
 - 32 p. ;  illus.  23 cm. 
<br/><br/><label>ISBN: </label>9780736896450 
<br/><br/><label>Subjects--Topical Terms: </label>--English Literature--Stories--Children's Story<br/>U.S.A
<br/><br/><label>Dewey Class. No.: </label>823  / KRJ