Bilbrough, Norman, <br/><br/>
Underwater Worlds / 
Written by Norman Bilbrough. 
 - First edition. 
 - 24 pages :  illustrations ;  21 cm. 
 - CSI chapters. Level N .
 - CSI chapters.  Level N. .
<br/><br/> Includes index. 
<br/><br/> 1786 
<br/><br/><label>ISBN: </label>9781604578812 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Marine ecology--Juvenile literature.<br/>Ocean--Juvenile literature.<br/>Readers (Elementary)<br/>Readers (Primary)<br/>Underwater exploration--Juvenile literature.
<br/><br/><label>Dewey Class. No.: </label>577.7