Cole, Joanna. <br/><br/>
The magic school bus at the waterworks / 
by Joanna Cole ; illustrated by Bruce Degen. 
 - New York :  Scholastic Inc.,  c1986. 
 - 39 p. :  col. ill. ;  20 x 24 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>0590403613 
<br/><br/><label>LCCN: </label>86006672  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Waterworks--Juvenile literature.<br/>Hydrology--Juvenile literature.<br/>Waterworks.
<br/><br/><label>LC Class. No.: </label>TD487  / .C64 1986