Fox, Leslie. <br/><br/>
Sink or float / 
by Leslie Fox. 
 - Orlando :  Harcourt,  n.d. 
 - 12 p. :  photo ;  15 cm. 
<br/><br/><label>ISBN: </label>0153148594 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physics--Juvenile literature.