The magic school bus inside Ralphie :
May, John
The magic school bus inside Ralphie : a book about germs / - New York : Scholastic Inc. 1995 - 30 unnumbered pages : color illustrations ; 21 cm. - The Magic school bus ; bk. 6. .
"Based on an episode of the Magic School Bus TV series by John May and Jocelyn Stevenson, illustrated by John Speirs"----Title page verso.
9780590400251
Infection --
Natural immunity -- --Juvenile literature.--Juvenile literature.
The magic school bus inside Ralphie : a book about germs / - New York : Scholastic Inc. 1995 - 30 unnumbered pages : color illustrations ; 21 cm. - The Magic school bus ; bk. 6. .
"Based on an episode of the Magic School Bus TV series by John May and Jocelyn Stevenson, illustrated by John Speirs"----Title page verso.
9780590400251
Infection --
Natural immunity -- --Juvenile literature.--Juvenile literature.