Walpole, Brenda,  <br/><br/>
Udara 

 - 40 pages :   colour illustrations ;   26 cm 
 - Siri kemahiran sains .
 - Siri kemahiran sains .
<br/><br/> Includes indexes 
<br/><br/><label>ISBN: </label>967610440X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science - Study and teaching.
<br/><br/><label>Dewey Class. No.: </label>507