Inventions ; general knowledge about science ; fruits and vegetables for good health 

 - 65 pages :   colour illustrations ;   29 cm 
 - The scientific era series 1 .
 - The scientific era series 1 .
<br/><br/><label>ISBN: </label>9831980565 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science - Encyclopedias
<br/><br/><label>Dewey Class. No.: </label>503