Cole, Joanna <br/><br/>
The Magic school bus at the waterworks / 
by Joanna Cole ; illustrated by Bruce Degen 
 - New York  Scholastic  c1986 
 - 39 p. :  col. ill.  22 cm. 
<br/><br/> When Ms. Frizzle, the strangest teacher in school, takes her class on a field trip to the waterworks, everyone ends up experiencing the water purification system from the inside. 
<br/><br/><label>ISBN: </label>0-590-40360-5 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Waterworks--Juvenile literature<br/>Hydrology--Juvenile literature<br/>Waterworks
<br/><br/><label>LC Class. No.: </label>TD 487  / C64 1986 AC