Managing time wisely 

 - 20 pages :   colour illustrations ;   26 cm 
 - Science exploration series .
 - Science exploration series .
<br/><br/><label>ISBN: </label>9833258719 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Readers
<br/><br/><label>Dewey Class. No.: </label>428.6